116-653: The Great Qing Copper Coin (simplified Chinese: 大清铜币 ; traditional Chinese: 大清銅幣 ; pinyin: Dà Qīng Tóng Bì ), also known as the Qing Dynasty Copper Coin or Da-Qing Tongbi , officially the Tai-Ching-Ti-Kuo Copper Coin , refers to a series of copper machine-struck coins from the Qing dynasty produced from 1906 (31st year of Guangxu ) until the fall of the Qing dynasty in 1911. These coins were intended to replace
232-579: A Gilman reagent . These can undergo substitution with alkyl halides to form coupling products ; as such, they are important in the field of organic synthesis . Copper(I) acetylide is highly shock-sensitive but is an intermediate in reactions such as the Cadiot–Chodkiewicz coupling and the Sonogashira coupling . Conjugate addition to enones and carbocupration of alkynes can also be achieved with organocopper compounds. Copper(I) forms
348-696: A covalent character and are relatively weak. This observation explains the low hardness and high ductility of single crystals of copper. At the macroscopic scale, introduction of extended defects to the crystal lattice , such as grain boundaries, hinders flow of the material under applied stress, thereby increasing its hardness. For this reason, copper is usually supplied in a fine-grained polycrystalline form, which has greater strength than monocrystalline forms. The softness of copper partly explains its high electrical conductivity ( 59.6 × 10 S /m ) and high thermal conductivity, second highest (second only to silver) among pure metals at room temperature. This
464-643: A nickel ) consists of 75% copper and 25% nickel in homogeneous composition. Prior to the introduction of cupronickel, which was widely adopted by countries in the latter half of the 20th century, alloys of copper and silver were also used, with the United States using an alloy of 90% silver and 10% copper until 1965, when circulating silver was removed from all coins with the exception of the half dollar—these were debased to an alloy of 40% silver and 60% copper between 1965 and 1970. The alloy of 90% copper and 10% nickel, remarkable for its resistance to corrosion,
580-425: A spin of 3 ⁄ 2 . The other isotopes are radioactive , with the most stable being Cu with a half-life of 61.83 hours. Seven metastable isomers have been characterized; Cu is the longest-lived with a half-life of 3.8 minutes. Isotopes with a mass number above 64 decay by β , whereas those with a mass number below 64 decay by β . Cu , which has
696-399: A blast furnace. A potential source of copper is polymetallic nodules, which have an estimated concentration 1.3%. Like aluminium , copper is recyclable without any loss of quality, both from raw state and from manufactured products. In volume, copper is the third most recycled metal after iron and aluminium. An estimated 80% of all copper ever mined is still in use today. According to
812-464: A blue crystalline penta hydrate , the most familiar copper compound in the laboratory. It is used in a fungicide called the Bordeaux mixture . Polyols , compounds containing more than one alcohol functional group , generally interact with cupric salts. For example, copper salts are used to test for reducing sugars . Specifically, using Benedict's reagent and Fehling's solution the presence of
928-457: A green patina of compounds called verdigris . Copper is sometimes used in decorative art , both in its elemental metal form and in compounds as pigments. Copper compounds are used as bacteriostatic agents , fungicides , and wood preservatives . Copper is essential to all living organisms as a trace dietary mineral because it is a key constituent of the respiratory enzyme complex cytochrome c oxidase . In molluscs and crustaceans , copper
1044-505: A half-life of 12.7 hours, decays both ways. Cu and Cu have significant applications. Cu is used in Cu Cu-PTSM as a radioactive tracer for positron emission tomography . Copper is produced in massive stars and is present in the Earth's crust in a proportion of about 50 parts per million (ppm). In nature, copper occurs in
1160-687: A layer of brown-black copper oxide which, unlike the rust that forms on iron in moist air, protects the underlying metal from further corrosion ( passivation ). A green layer of verdigris (copper carbonate) can often be seen on old copper structures, such as the roofing of many older buildings and the Statue of Liberty . Copper tarnishes when exposed to some sulfur compounds, with which it reacts to form various copper sulfides . There are 29 isotopes of copper. Cu and Cu are stable, with Cu comprising approximately 69% of naturally occurring copper; both have
1276-532: A natural color other than gray or silver. Pure copper is orange-red and acquires a reddish tarnish when exposed to air. This is due to the low plasma frequency of the metal, which lies in the red part of the visible spectrum, causing it to absorb the higher-frequency green and blue colors. As with other metals, if copper is put in contact with another metal in the presence of an electrolyte , galvanic corrosion will occur. Copper does not react with water, but it does slowly react with atmospheric oxygen to form
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#17327912093251392-445: A period of political instability and economic hardship beginning in the late 19th century, Shandong has experienced rapid growth in recent decades. Home to over 100 million inhabitants, Shandong is the world's sixth-most populous subnational entity , and China's second-most populous province . The economy of Shandong is China's third-largest provincial economy with a GDP of CN¥8.3 trillion (US$ 1.3 trillion) in 2021, equivalent to
1508-407: A red-brown precipitate with copper(II) salts. Compounds that contain a carbon-copper bond are known as organocopper compounds. They are very reactive towards oxygen to form copper(I) oxide and have many uses in chemistry . They are synthesized by treating copper(I) compounds with Grignard reagents , terminal alkynes or organolithium reagents ; in particular, the last reaction described produces
1624-451: A rich variety of compounds, usually with oxidation states +1 and +2, which are often called cuprous and cupric , respectively. Copper compounds promote or catalyse numerous chemical and biological processes. As with other elements, the simplest compounds of copper are binary compounds, i.e. those containing only two elements, the principal examples being oxides, sulfides, and halides . Both cuprous and cupric oxides are known. Among
1740-525: A rocky coastline with cliffs, bays, and islands; Laizhou Bay , the southernmost of the 3 bays of the Bohai Sea , is bordering the northern coast between Dongying and Penglai ; Jiaozhou Bay , which is much smaller, is surrounded by Qingdao . The Miaodao Islands extends northwards from the northernmost coast of the peninsula, separating the Bohai Sea and the Yellow Sea . With Jinan serving as
1856-535: A site with one of the longest histories of continuous religious worship in the world. The Buddhist temples in the mountains south of the provincial capital of Jinan were once among the foremost Buddhist sites in China. The city of Qufu was the birthplace of Confucius , and later became the center of Confucianism. Shandong's location at the intersection of ancient and modern north–south and east–west trading routes has helped establish it as an economic center. After
1972-405: A smaller denomination brass coin to ease the pressure of the 10 wén Great Qing Copper Coins, but only the provincial mints of Hubei, Jiangning, and Henan complied. The government of the Qing dynasty had issued a new law on currency known as the "Currency Regulations" (幣制則例) in the year 1910 to regulate and standardise the entire Chinese national currency system. In the year 1911, the government of
2088-424: A variety of minerals, including native copper , copper sulfides such as chalcopyrite , bornite , digenite , covellite , and chalcocite , copper sulfosalts such as tetrahedite-tennantite , and enargite , copper carbonates such as azurite and malachite , and as copper(I) or copper(II) oxides such as cuprite and tenorite , respectively. The largest mass of elemental copper discovered weighed 420 tonnes and
2204-436: A variety of weak complexes with alkenes and carbon monoxide , especially in the presence of amine ligands. Copper(III) is most often found in oxides. A simple example is potassium cuprate , KCuO 2 , a blue-black solid. The most extensively studied copper(III) compounds are the cuprate superconductors . Yttrium barium copper oxide (YBa 2 Cu 3 O 7 ) consists of both Cu(II) and Cu(III) centres. Like oxide, fluoride
2320-643: Is 550 to 950 mm (22 to 37 in), the vast majority of which occurs during summer, due to monsoonal influences. Shandong is part of the Eastern Block of the North China craton . Beginning in the Mesozoic , Shandong has undergone a crustal thinning that is unusual for a craton and that has reduced the thickness of the crust from 200 km (120 mi) to as little as 80 km (50 mi). Shandong has hence experienced extensive volcanism in
2436-603: Is a chemical element ; it has symbol Cu (from Latin cuprum ) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity . A freshly exposed surface of pure copper has a pinkish-orange color . Copper is used as a conductor of heat and electricity, as a building material , and as a constituent of various metal alloys , such as sterling silver used in jewelry , cupronickel used to make marine hardware and coins , and constantan used in strain gauges and thermocouples for temperature measurement. Copper
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#17327912093252552-583: Is a constituent of the blood pigment hemocyanin , replaced by the iron-complexed hemoglobin in fish and other vertebrates . In humans, copper is found mainly in the liver, muscle, and bone. The adult body contains between 1.4 and 2.1 mg of copper per kilogram of body weight. In the Roman era , copper was mined principally on Cyprus , the origin of the name of the metal, from aes cyprium (metal of Cyprus), later corrupted to cuprum (Latin). Coper ( Old English ) and copper were derived from this,
2668-405: Is a highly basic anion and is known to stabilize metal ions in high oxidation states. Both copper(III) and even copper(IV) fluorides are known, K 3 CuF 6 and Cs 2 CuF 6 , respectively. Some copper proteins form oxo complexes , which, in extensively studied synthetic analog systems, feature copper(III). With tetrapeptides , purple-colored copper(III) complexes are stabilized by
2784-415: Is also close to Qingdao Qianwan Container Terminal . At present, more than 40 foreign-invested enterprises have moved in, and 2000 projects have been approved. It is one of the special economic areas which enjoys the most favorable investment policies on customs, foreign exchange, foreign trade, and taxation in China. The State Council approved Qingdao High-Tech Industrial Development Zone in 1992. The zone
2900-401: Is because the resistivity to electron transport in metals at room temperature originates primarily from scattering of electrons on thermal vibrations of the lattice, which are relatively weak in a soft metal. The maximum possible current density of copper in open air is approximately 3.1 × 10 A/m , above which it begins to heat excessively. Copper is one of a few metallic elements with
3016-489: Is located close to Qingdao Liuting Airport and Qingdao Harbor. Encouraged industries include electronic information, biotechnology, medicine, new materials, new energy, advanced equipment manufacturing, marine science & technology, national defense technology. Established in August 1995, Weifang Binhai Economic & Technological Development Area (BEDA) is a national economic and technological development area approved by
3132-533: Is melted in a furnace and then reduced and cast into billets and ingots ; lower-purity scrap is refined by electroplating in a bath of sulfuric acid . The environmental cost of copper mining was estimated at 3.7 kg CO2eq per kg of copper in 2019. Codelco, a major producer in Chile, reported that in 2020 the company emitted 2.8t CO2eq per ton (2.8 kg CO2eq per kg) of fine copper. Greenhouse gas emissions primarily arise from electricity consumed by
3248-600: Is now modern Shandong: Qingzhou ( 青州 ) in the north and Yanzhou ( 兗州 ) in the south. During the Three Kingdoms period, Shandong was part of the northern kingdom of Cao Wei , which ruled over northern China. After the Three Kingdoms period, a brief period of unity under the Western Jin dynasty gave way to invasions by nomadic peoples from the north. Northern China, including Shandong, was overrun. Over
3364-762: Is one of the few metals that can occur in nature in a directly usable metallic form ( native metals ). This led to very early human use in several regions, from c. 8000 BC . Thousands of years later, it was the first metal to be smelted from sulfide ores, c. 5000 BC ; the first metal to be cast into a shape in a mold, c. 4000 BC ; and the first metal to be purposely alloyed with another metal, tin , to create bronze , c. 3500 BC . Commonly encountered compounds are copper(II) salts, which often impart blue or green colors to such minerals as azurite , malachite , and turquoise , and have been used widely and historically as pigments. Copper used in buildings, usually for roofing, oxidizes to form
3480-444: Is one of the most important constituents of silver and karat gold solders used in the jewelry industry, modifying the color, hardness and melting point of the resulting alloys. Some lead-free solders consist of tin alloyed with a small proportion of copper and other metals. The alloy of copper and nickel , called cupronickel , is used in low-denomination coins, often for the outer cladding. The US five-cent coin (currently called
3596-437: Is recovered from mine tailings and heaps. A variety of methods are used including leaching with sulfuric acid, ammonia, ferric chloride. Biological methods are also used. A significant source of copper is from recycling. Recycling is facilitated because copper is usually deployed in its metallic state. In 2001, a typical automobile contained 20–30 kg of copper. Recycling usually begins with some melting process using
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3712-608: Is the biggest industrial producer and one of the top manufacturing provinces in China. Shandong has also benefited from South Korean and Japanese investment and tourism, due to its geographical proximity to those countries. The richest part of the province is the Shandong Peninsula , where the city of Qingdao is home to three of the most well-known brand names of China: Tsingtao Beer , Haier and Hisense . Besides, Dongying 's oil fields and petroleum industries form an important component of Shandong's economy. Despite
3828-675: Is the highest organ of state power in Shandong province and Shandong's provincial legislature. Its standing committee exercises the majority of the power of The Shandong Provincial People's Congress. The current chairman of the standing committee is Li Ganjie . The Shandong Provincial People's Government is the State Administration in Shandong province. Its main officials are elected and appointed by The Shandong Provincial People's Congress. The provincial government reports to Shandong Provincial People's Congress and State Council of
3944-503: Is the hilly Shandong Peninsula extending into the sea; Miaodao Archipaelago to the north of Shandong Peninsula is the border of Bohai Sea (west) and Yellow Sea (east). The highest peak of Shandong is Jade Emperor Peak , with a height of 1,545 metres (5,069 ft), which is also the highest peak in the Mount Tai Ranges. The Yellow River passes through Shandong's western areas, since 1855, it has always been entering
4060-411: Is used for various objects exposed to seawater, though it is vulnerable to the sulfides sometimes found in polluted harbors and estuaries. Alloys of copper with aluminium (about 7%) have a golden color and are used in decorations. Shakudō is a Japanese decorative alloy of copper containing a low percentage of gold, typically 4–10%, that can be patinated to a dark blue or black color. Copper forms
4176-494: Is ¥60.6 billion, which increased by 31%. There have been 48 projects invested by companies listed among the Global Fortune 500 in the zone. With the fast development of reform and opening-up, Haier , Hisense , Aucma, Sinopec , CSIC , CNOOC , CIMC etc. are all located in the zone. The State Council established Qingdao Free Trade Zone in 1992. The zone is 60 km (37 mi) away from Qingdao Liuting Airport. It
4292-686: The British Geological Survey , in 2005, Chile was the top producer of copper with at least one-third of the world share followed by the United States, Indonesia and Peru. Copper can also be recovered through the in-situ leach process. Several sites in the state of Arizona are considered prime candidates for this method. The amount of copper in use is increasing and the quantity available is barely sufficient to allow all countries to reach developed world levels of usage. An alternative source of copper for collection currently being researched are polymetallic nodules , which are located at
4408-670: The Great Chinese Famine . In recent years, Shandong, especially eastern Shandong, has enjoyed significant economic development, becoming one of the People's Republic of China's richest provinces. Shandong is on the eastern edge of the North China Plain and in the lower reaches of the Yellow River , and extends out to sea as the Shandong Peninsula . Shandong borders the Bohai Sea to the north, Hebei to
4524-607: The Great Lakes may have also been mining copper during this time, making it one of the oldest known examples of copper extraction in the world. There is evidence from prehistoric lead pollution from lakes in Michigan that people in the region began mining copper c. 6000 BC . Evidence suggests that utilitarian copper objects fell increasingly out of use in the Old Copper Complex of North America during
4640-553: The International Resource Panel 's Metal Stocks in Society report , the global per capita stock of copper in use in society is 35–55 kg. Much of this is in more-developed countries (140–300 kg per capita) rather than less-developed countries (30–40 kg per capita). The process of recycling copper is roughly the same as is used to extract copper but requires fewer steps. High-purity scrap copper
4756-565: The Nature Index ranked Jinan ranked 32nd and Qingdao 43rd in the top 50 cities in the world by scientific research output. Shandong's name literally means 'east of the mountains', from 'mountain' ( 山 ) and 'east' ( 东 ). The name refers to the province's location to the east of the Taihang Mountains . A common nickname for Shandong is Qilu ( 齐鲁 ; 齊魯 ), from the states of Qi and Lu that existed in
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4872-726: The Neolithic period and the Bronze Age was formerly termed the Chalcolithic period (copper-stone), when copper tools were used with stone tools. The term has gradually fallen out of favor because in some parts of the world, the Chalcolithic and Neolithic are coterminous at both ends. Brass, an alloy of copper and zinc, is of much more recent origin. It was known to the Greeks, but became a significant supplement to bronze during
4988-457: The Qing dynasty . Not long after these new copper coins were introduced, black market counterfeit versions of the 10 wén appeared and illegal mints or "private mints" (局私) opened all over China and started producing more coins than what the Qing government's set quotas allowed on the market. Both Chinese and foreigners soon started producing struck cash coins of inferior quality, often with traces of
5104-455: The Tertiary . Some geological formations in Shandong are rich in fossils. For example, Zhucheng in southeastern Shandong has been the site of discovering many dinosaur fossils. In 2008, about 7,600 dinosaur bones from Tyrannosaurus , Ankylosaurus , and other genera were found, likely the largest collection ever discovered at one location. The Shandong Provincial People's Congress
5220-525: The Vinča culture date to 4500 BC. Sumerian and Egyptian artifacts of copper and bronze alloys date to 3000 BC. Egyptian Blue , or cuprorivaite (calcium copper silicate) is a synthetic pigment that contains copper and started being used in ancient Egypt around 3250 BC. The manufacturing process of Egyptian blue was known to the Romans, but by the fourth century AD the pigment fell out of use and
5336-582: The circuits (a political division). Later on, China splintered into warlord factions, resulting in the Five Dynasties and Ten Kingdoms period. Shandong was part of the Five Dynasties, all based in the north. The Song dynasty reunified China in the late tenth century. The classic novel Water Margin was based on folk tales of outlaw bands active in Shandong during the Song dynasty. In 1996,
5452-619: The root systems. Presently, there are more than 140 wineries in the region, mainly distributed in the Nanwang Grape Valley and the Yan-Peng Sightseeing Highway(both are in Yantai ). The region produced more than 40% of China's grape wine production. Main varieties such as Cabernet Sauvignon , Cabernet Gernischt , Merlot , Riesling and Chardonnay are all at 20 years of age, considered to be
5568-636: The silver Great Qing Silver Coin (大清銀幣) and the gold Great Qing Gold Coin (大清金幣). Due to a shortage of copper at the end of the Qing dynasty , the mint of Guangzhou , Guangdong , began striking round copper coins without square holes in June 1900. They were called Tóngyuán ( 銅 元 ) or Tóngbǎn ( 銅 板 ) and they were struck in denominations of 1, 2, 5, 10, 20, and 30 wén . These struck coins were well received because of their higher quality compared to cast coins and their convenience in carriage, as well as their uniform weight and copper content compared to
5684-588: The state of Lu based in Qufu . Lu is famous for being the home of Confucius ; however, it was comparatively small, eventually being annexed by the neighboring state of Chu to its south. Meanwhile, Qi was a significant power throughout the entire period, and ruled cities including Linzi , Jimo (near modern Qingdao ) and Ju . The Qin dynasty conquered Qi and founded the first centralized Chinese state in 221 BC. The Han dynasty that followed created several commanderies supervised by two regions ( 刺史部 ) in what
5800-561: The "Dogmeat General", as military governor of Shandong Province. Time dubbed him China's "basest warlord". He ruled over the province until 1928 when he was ousted in the wake of the Northern Expedition . He was succeeded by Han Fuju , who was loyal to the warlord Feng Yuxiang but later switched his allegiance to the Nanjing government headed by Chiang Kai-shek . Han Fuju also ousted the warlord Liu Zhennian , nicknamed
5916-777: The "King of Shandong East", who ruled eastern Shandong Province, hence unifying the province under his rule. In 1937 Japan began its invasion of China proper in the Second Sino-Japanese War , which would eventually become part of the Pacific theater of the Second World War. Han Fuju was made Deputy Commander in Chief of the 5th War Area and put in charge of defending the lower Yellow River valley. However, he abandoned his base in Jinan when Japanese troops crossed
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#17327912093256032-496: The 19th century, China became increasingly exposed to Western influence; Shandong, a coastal province under the dukedom of Xiong, was significantly affected. Qingdao was leased to Germany in 1897 and Weihai to Britain in 1898. As a result of foreign pressure from the Russian Empire , which had annexed Outer Manchuria by 1860, the Qing encouraged settlement of Shandong people to what remained of Manchuria . Shandong
6148-674: The 31st year of the Guangxu Emperor (1906) they were being produced at 15 different bureaus in 12 provinces. The government of the Qing dynasty established a modern coin factory at the Ministry of Revenue Mint (formerly the "Tianjin Silver Money General Mint") in Tianjin in the year 1903 and the mint began to produce milled copper-alloy coins in 1905. At the same time, the government of the Qing dynasty ordered
6264-548: The 9th or 10th century AD. Carbon dating has established mining at Alderley Edge in Cheshire , UK, at 2280 to 1890 BC. Ötzi the Iceman , a male dated from 3300 to 3200 BC, was found with an axe with a copper head 99.7% pure; high levels of arsenic in his hair suggest an involvement in copper smelting. Experience with copper has assisted the development of other metals; in particular, copper smelting likely led to
6380-517: The Bronze Age and a shift towards an increased production of ornamental copper objects occurred. Natural bronze, a type of copper made from ores rich in silicon, arsenic, and (rarely) tin, came into general use in the Balkans around 5500 BC. Alloying copper with tin to make bronze was first practiced about 4000 years after the discovery of copper smelting, and about 2000 years after "natural bronze" had come into general use. Bronze artifacts from
6496-537: The Chinese Buddhist monk Faxian landed at Laoshan , on the southern edge of the Shandong peninsula, and proceeded to Qingzhou to edit and translate the scriptures he had brought back from India . The Sui dynasty reestablished unity in 589, and the Tang dynasty (618–907) presided over the next golden age of China. For the earlier part of this period, Shandong was ruled as part of Henan Circuit , one of
6612-579: The GDP of Mexico. If considered among sovereign states, Shandong would rank as the 15th-largest economy and the 15th-most populous as of 2021 . Its GDP per capita is around the national average. Shandong is one of China's leading provinces in education and research. It has 153 higher education institutions , ranking second in East China after Jiangsu and fourth among all Chinese first-level divisions after Jiangsu, Guangdong and Henan . As of 2023 ,
6728-419: The GDP of Mexico. Its GDP per capita is around the national average . Compared to a country, it would be the 15th-largest economy and the 15th most populous as of 2021. Shandong ranks first among the provinces in the production of a variety of products, including cotton , wheat , and garlic as well as precious metals such as gold and diamonds . It also has one of the biggest sapphire deposits in
6844-713: The Germans: over 200 million marks were invested in world-class harbor facilities including berths , heavy machinery, rail yards, and a floating dry dock. Private enterprises worked across the Shandong Province, opening mines, banks, factories, and rail lines. As a consequence of the First World War, Japan seized German holdings in Qingdao and Shandong. The 1919 Treaty of Versailles transferred ownership to Japan instead of restoring Chinese sovereignty over
6960-668: The Great Qing Copper Coin was introduced by the imperial government in the hope of creating a unified national currency system. The Great Qing Copper Coin featured the English text "Tai-Ching-Ti-Kuo Copper Coin" (where "Tai-Ching-Ti-Kuo" refers to the Qing dynasty ), along with Traditional Chinese characters "大清銅幣" (literally "Copper Coin of the Great Qing ") which were the names of the coinage in English and Chinese languages. They were used to indicate that this series
7076-514: The Guangxu (or Xuantong) years", to indicate the era of mintage (during the reign of Guangxu Emperor or Xuantong Emperor ). Near the right and left sides of the outer rim were two Chinese characters representing the "Ministry of the Interior and Finance" (戶部), which was later replaced by the "Ministry of Revenue and Expenditure" (度支部). At the bottom, the 10 wén Great Qing Copper Coins contained
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#17327912093257192-543: The Jinan High-tech Industrial Development Zone has attracted enterprises as LG, Panasonic, Volvo, and Sanyo. In 2000, it joined the world science and technology association and set up a China-Ukraine High-tech Cooperation Park. The Qilu Software Park became the sister park of Bangalore park of India. The export processing zone is located in the eastern suburbs of Jinan, east of the Jinan High-tech Industrial Development Zone, and to
7308-469: The Korean 5 fun coins they were overstruck on, or with characters and symbols not found on official government issued coins. Joseon began minting modern-style machine-struck copper-alloy coins in 1892, which was 8 years before the Qing dynasty did so in China. These coins were often minted by Korean businessmen and former Japanese Samurai (specifically Rōnin ) looking to make a profit on exchanging
7424-541: The Middle East; a copper pendant was found in northern Iraq that dates to 8700 BC. Evidence suggests that gold and meteoric iron (but not smelted iron) were the only metals used by humans before copper. The history of copper metallurgy is thought to follow this sequence: first, cold working of native copper, then annealing , smelting , and, finally, lost-wax casting . In southeastern Anatolia , all four of these techniques appear more or less simultaneously at
7540-411: The People's Republic of China . The current Governor of Shandong is Zhou Naixiang . As of 1832, Shandong was exporting fruits, vegetables, wine, drugs, and deerskin, often heading to Guangzhou to exchange clothing and fabrics. The economy of Shandong is China's third largest provincial economy with a GDP of CNY ¥8.3 trillion in 2021 or USD $ 1.3 trillion in (nominal), which is equivalent to
7656-480: The Qing dynasty had issued the " Xuantong third year" series of copper-alloy coins, but these did not comply with the earlier set national regulations for coinages in China. The designs of the Great Qing Copper Coin are similar to that of the Guangxu Yuanbao coins, the inscription "Great Qing Copper Coin" (大清銅幣) written in large Traditional Chinese characters occupied the centre part of the obverse side of
7772-586: The Roman Empire. Shandong Shandong is a coastal province in East China . Shandong has played a major role in Chinese history since the beginning of Chinese civilization along the lower reaches of the Yellow River . It has served as a pivotal cultural and religious center for Taoism , Chinese Buddhism and Confucianism . Shandong's Mount Tai is the most revered mountain of Taoism and
7888-624: The Sea by Science and Technology, National Innovation Base for Rejuvenating Trade through Science and Technology and National Demonstration Eco-Industry Park. Weihai Economic and Technological Development Zone is a state-level development zone approved by the State Council on Oct 21, 1992. The administrative area has an area of 194 km (75 sq mi), including the programmed area of 36 km (14 sq mi) and an initial area of 11.88 km (4.59 sq mi). Its nearest port
8004-466: The State Council. Covering an area of 677 km (261 sq mi), BEDA has a population of 100,000. BEDA possesses a large state-owned industrial land for use with an area of 400 km (150 sq mi). The land can be transacted conveniently, guaranteeing the demand of any project construction and providing broad development space for the enterprises in the area. Continuously, BEDA has been accredited as National Demonstration Zone invigorating
8120-804: The United States' mediation during the Washington Naval Conference . Weihai followed in 1930. Shandong's return of control fell into the Warlord Era of the Republic of China. Shandong was handed over to the Zhili clique of warlords, but after the Second Zhili–Fengtian War of 1924, the northeast China-based Fengtian clique took over. In April 1925, the Fengtian clique installed the warlord Zhang Zongchang , nicknamed
8236-642: The Yellow River. He was executed for not following orders shortly thereafter. During the Japanese occupation, with resistance continuing in the countryside, Shandong was one of the provinces where the scorched-earth Three Alls policy ("kill all", "burn all", and "loot all") was implemented by Japanese general Yasuji Okamura . This lasted until Japan's surrender in 1945, killing millions of people in Shandong and Northern China. By 1945, communist Chinese Red Army forces already held some parts of Shandong. Over
8352-521: The affected areas is highly acidic, with a pH range of 2.1–4.9, and shows elevated electrical conductivity levels between 280 and 1561 mS/cm. These changes in water chemistry make the environment inhospitable for fish, essentially rendering the water uninhabitable for aquatic life. Numerous copper alloys have been formulated, many with important uses. Brass is an alloy of copper and zinc . Bronze usually refers to copper- tin alloys, but can refer to any alloy of copper such as aluminium bronze . Copper
8468-463: The area during the Spring and Autumn period . Whereas Qi was a major political power, Lu played only a minor political role but became renowned as the home of Confucius , and its cultural influence came to eclipse that of Qi. The cultural legacy of Lu is reflected in the province's official abbreviation of Lǔ ( 鲁 ; 魯 ). With its location on the eastern edge of the North China Plain , Shandong
8584-680: The area. Popular dissatisfaction with this outcome, referred to as the Shandong Problem , led to the vehement student protests in the May Fourth Movement . Among the reservations to the Treaty that the United States Senate Committee on Foreign Relations approved was "to give Shantung to China", the treaty with reservations was not approved. Finally, Shandong reverted to Chinese control in 1922 after
8700-541: The atmosphere; 150 mg/kg in soil; 30 mg/kg in vegetation; 2 μg/L in freshwater and 0.5 μg/L in seawater. Most copper is mined or extracted as copper sulfides from large open pit mines in porphyry copper deposits that contain 0.4 to 1.0% copper. Sites include Chuquicamata , in Chile, Bingham Canyon Mine , in Utah, United States, and El Chino Mine , in New Mexico, United States. According to
8816-714: The beginning of the Neolithic c. 7500 BC . Copper smelting was independently invented in different places. The earliest evidence of lost-wax casting copper comes from an amulet found in Mehrgarh , Pakistan, and is dated to 4000 BC. Investment casting was invented in 4500–4000 BC in Southeast Asia Smelting was probably discovered in China before 2800 BC, in Central America around 600 AD, and in West Africa about
8932-523: The coin. In the very centre of the coin, between the "Great Qing Copper Coin" characters, were one or two small Chinese characters indicating the provincial mint where the coin was manufactured. Near the top of the rim of the coin on the obverse side, there was text written in Manchu (the language of the ruling class of the Qing dynasty) that read ᠪᠠᡩᠠᠷᠠᠩᡤᠠ ᡩᠣᠷᠣ ᡳ ᠠᠨᡳᠶᠠᡳ ᠸᡝᡳᠯᡝᡥᡝ (and later ᡤᡝᡥᡠᠩᡤᡝ ᠶᠣᠰᠣ ᡳ ᠠᠨᡳᠶᠠᡳ ᠸᡝᡳᠯᡝᡥᡝ ), meaning "minted during
9048-504: The coins to sufficiently obliterate the inscriptions and symbols on the Korean 5 fun coins, the counterfeit Qing dynasty 10 wén coins made using this method would usually exhibit a combination of both the Chinese Great Qing Copper Coin and Korean 5 fun designs. For example, there can still be traces of a wreath surrounding the dragon or minor traces of the original Korean inscription. Copper Copper
9164-531: The company, especially when sourced from fossil fuels, and from engines required for copper extraction and refinement. Companies that mine land often mismanage waste, rendering the area sterile for life. Additionally, nearby rivers and forests are also negatively impacted. The Philippines is an example of a region where land is overexploited by mining companies. Copper mining waste in Valea Şesei, Romania, has significantly altered nearby water properties. The water in
9280-403: The denominations of 2 wén , 5 wén , 10 wén , and 20 wén with each of these denominations being based on their nominal value in traditional cash coins. The government of the Qing dynasty had produced an excessive amount of 10 wén Great Qing Copper Coins. In the year 1909, the government of the Qing dynasty had ordered the mints to suspend the production of the 10 wén copper coins and produce
9396-522: The deprotonated amide ligands. Complexes of copper(III) are also found as intermediates in reactions of organocopper compounds, for example in the Kharasch–Sosnovsky reaction . A timeline of copper illustrates how this metal has advanced human civilization for the past 11,000 years. Copper occurs naturally as native metallic copper and was known to some of the oldest civilizations on record. The history of copper use dates to 9000 BC in
9512-461: The depths of the Pacific Ocean approximately 3000–6500 meters below sea level. These nodules contain other valuable metals such as cobalt and nickel . Copper has been in use for at least 10,000 years, but more than 95% of all copper ever mined and smelted has been extracted since 1900. As with many natural resources, the total amount of copper on Earth is vast, with around 10 tons in
9628-563: The discovery of iron smelting . Production in the Old Copper Complex in Michigan and Wisconsin is dated between 6500 and 3000 BC. A copper spearpoint found in Wisconsin has been dated to 6500 BC. Copper usage by the indigenous peoples of the Old Copper Complex from the Great Lakes region of North America has been radiometrically dated to as far back as 7500 BC. Indigenous peoples of North America around
9744-525: The discovery of over two hundred buried Buddhist statues at Qingzhou was hailed as a major archaeological find. The statues included early examples of painted figures and are thought to have been buried due to Emperor Huizong 's repression of Buddhism (he favored Taoism ). The Song dynasty was forced to cede northern China to the Jurchen Jin dynasty in 1142. Shandong was administered by Jin as Shandong East Circuit and Shandong West Circuit –
9860-415: The earlier cast cash coins and provincial coinages, but were welcomed to mixed receptions. Two series of Tongyuan (銅元) were simultaneously in circulation, one carried the inscription Guangxu Yuanbao (光緒元寶), which was also used for silver coins, and the other with the inscription "Great Qing Copper Coin". While the Guangxu Yuanbao were often provincially issued and at first were of different weights,
9976-633: The entire country to produce the Great Qing Copper Coin to replace the former "Guangxu Yuanbao" and unified and standardised national currency system. The government of the Qing dynasty hoped to regain control of its currency system in order to also get more control over its own internal affairs. In the year 1906, the Ministry of Revenue had issued the "Regulations on the Rectification Law" (整頓圜法章程), and had merged 24 mints around China into only 9. The Great Qing Copper Coins were initially issued in
10092-545: The fastest water exchange rate (speed of water ligands attaching and detaching) for any transition metal aquo complex . Adding aqueous sodium hydroxide causes the precipitation of light blue solid copper(II) hydroxide . A simplified equation is: Aqueous ammonia results in the same precipitate. Upon adding excess ammonia, the precipitate dissolves, forming tetraamminecopper(II) : Many other oxyanions form complexes; these include copper(II) acetate , copper(II) nitrate , and copper(II) carbonate . Copper(II) sulfate forms
10208-612: The first use of its current name. The modern province of Shandong was created by the Ming dynasty , where it had a more expansive territory, including the agricultural part of Liaoning . After the Ming–Qing Transition in 1644, Shandong acquired (more or less) its current borders. On 25 July 1668, an earthquake with an estimated magnitude of 8.5 and an epicenter just northeast of Linyi devastated Shandong, and killed between 43,000 and 50,000 people. During
10324-754: The golden stage for these grapes. Most of them maintain an average saccharinity of above 20%. Major producers Founded in 1991, the Jinan High-tech Industrial Development zone was one of the first of its kind approved by the State Council . The zone is located to the east of the city and covers a total planning area of 83 km (32 sq mi) that is divided into a central area covering 33 km (13 sq mi), an export processing district of 10 km (3.9 sq mi), and an eastern extension area of 40 km (15 sq mi). Since its foundation,
10440-632: The inscription Guangxu Yuanbao (光緒元寶) and a weight of 7.46 grams. These early Cantonese milled coinage were inspired by copper coins from British Hong Kong . Due to the success of these Cantonese milled coins, the government of the province of Fujian started minting their own version of this coin in August 1900. From the year 1901, the provinces of Jiangsu , Hubei , Anhui , Zhejiang , Fengtian , Hunan , Beiyang Zhili , Sichuan , Jiangxi , Jilin , Shandong , Henan , Guangxi , and Yunnan had all begun to manufacture milled copper-alloy coins and distributed them nationwide. They became so popular that by
10556-451: The inscription "文十錢制當" ("Worth 10 wén in standard cash coins ") written from right to left indicating its nominal value. The reverse side of the Great Qing Copper Coin, like the Guangxu Yuanbao provincial coinages, also had the design of a Chinese dragon on it, but these dragons have much fewer variations in comparison to those on the Guangxu Yuanbao milled coins because of the imperial government's efforts in standardising designs. Near
10672-511: The later spelling first used around 1530. Copper, silver , and gold are in group 11 of the periodic table; these three metals have one s-orbital electron on top of a filled d- electron shell and are characterized by high ductility , and electrical and thermal conductivity. The filled d-shells in these elements contribute little to interatomic interactions, which are dominated by the s-electrons through metallic bonds . Unlike metals with incomplete d-shells, metallic bonds in copper are lacking
10788-514: The less consistent alloys of cast Chinese coinage. As these coins were profitable to manufacture it did not take long before other provinces started making machine-struck cash coins too, and soon 20 bureaus were opened across China. As these coins became more common, they eventually replaced the old cast coins as the main medium of exchange for small purchases among the Chinese people. The first of these provincial machine-struck copper-alloy coins had
10904-419: The level of <1% Cu. Concentration of the ore is required, which begins with comminution followed by froth flotation . The remaining concentrate is the smelted, which can be described with two simplified equations: Cuprous oxide reacts with cuprous sulfide to convert to blister copper upon heating This roasting gives matte copper, roughly 50% Cu by weight, which is purified by electrolysis. Depending on
11020-415: The low value copper coins into silver dollars as a single Chinese silver dollar had the purchasing power of 1000 Korean fun. The majority of the counterfeit coins bear the inscription that they were minted in either Zhejiang province or Shandong province , but they circulated all over the coastal regions of China. Because the hand-operated presses used by the counterfeiters did not exert enough pressure on
11136-472: The modern world. The price of copper is volatile . After a peak in 2022 the price unexpectedly fell. The global market for copper is one of the most commodified and financialized of the commodity markets , and has been so for decades. The great majority of copper ores are sulfides. Common ores are the sulfides chalcopyrite (CuFeS 2 ), bornite (Cu 5 FeS 4 ) and, to a lesser extent, covellite (CuS) and chalcocite (Cu 2 S). These ores occur at
11252-695: The next century or so, Shandong changed hands several times, falling to the Later Zhao , then Former Yan , then Former Qin , then Later Yan , then Southern Yan , then the Liu Song dynasty , and finally the Northern Wei dynasty , the first of the Northern dynasties during the Northern and Southern dynasties period. Shandong stayed with the Northern dynasties for the rest of this period. In 412 AD,
11368-684: The next four years of the Chinese Civil War , they expanded their holdings, eventually driving the Kuomintang (government of the Republic of China ) out of Shandong to the island of Taiwan by June 1949, including a noble of the Xiong ( 熊 ) family who held the governorship, previously a dukedom during the imperial era, and an ancient viscountcy originating in Chu. The People's Republic of China
11484-635: The north of the Jiwang highway. The distances to the Jiqing Highway and the Jinan Airport are 9 and 18 km (5.6 and 11.2 mi) respectively. Approved by the State Council in October 1984, Qingdao Economic and Technical Development Zone has a plan of 12.5 km (4.8 sq mi). In 2004 the local GDP was ¥27.51 billion, which increased by 28.9%; the total industrial output value
11600-408: The northwest, Henan to the west, Jiangsu to the south, and the Yellow Sea to the northeast, east and southeast. It shares a short border with Anhui between Henan and Jiangsu. The northwestern, western, and southwestern parts of the province are all part of the vast North China Plain . The province's center is more mountainous, with Mount Tai being the most prominent. The east of the province
11716-516: The numerous copper sulfides , important examples include copper(I) sulfide ( Cu 2 S ) and copper monosulfide ( CuS ). Cuprous halides with fluorine , chlorine , bromine , and iodine are known, as are cupric halides with fluorine , chlorine , and bromine . Attempts to prepare copper(II) iodide yield only copper(I) iodide and iodine. Copper forms coordination complexes with ligands . In aqueous solution, copper(II) exists as [Cu(H 2 O) 6 ] . This complex exhibits
11832-428: The ore, sometimes other metals are obtained during the electrolysis including platinum and gold. Aside from sulfides, another family of ores are oxides. Approximately 15% of the world's copper supply derives from these oxides. The beneficiation process for oxides involves extraction with sulfuric acid solutions followed by electrolysis. In parallel with the above method for "concentrated" sulfide and oxide ores, copper
11948-464: The primacy of Shandong's energy sector, the province has also been plagued with problems of inefficiency and ranks as the largest consumer of fossil fuels in all of China. The production of wine is the second largest industry in the Shandong Province, second only to agriculture. Geographically, the coastal areas remain relatively flat. Most of the soil is loose, well-ventilated, and rich in minerals and organic matter that enable full development of
12064-857: The province's economic and cultural center, the province's economic prowess has led to the development of modern coastal cities located at Qingdao , Weihai , and Yantai . Shandong has a temperate climate : humid continental (Köppen Dwa ); it is bordering humid subtropical (C wa under the Köppen climate classification ) in the south. Generally, summers are hot (typical max 35 °C) and rainy (except for eastern parts of Jiaodong Peninsula (typical max 28 °C) and Mount Tai (typical max 20 °C)), while winters are cold and dry. Average temperatures are −9 to 1 °C (16 to 34 °F) in January and 18 to 28 °C (64 to 82 °F) in July. Annual precipitation
12180-564: The sea to Shandong's northern coast; in Shandong, it flows on a levee , higher than the surrounding land, and dividing western Shandong into the Hai He watershed in the north and the Huai River watershed in the south. The Grand Canal of China enters Shandong from the northwest and leaves on the southwest. Weishan Lake is the largest lake in the province. Shandong's coastline is 3,000 kilometres (1,900 mi) long. Shandong Peninsula has
12296-750: The secret to its manufacturing process became lost. The Romans said the blue pigment was made from copper, silica, lime and natron and was known to them as caeruleum . The Bronze Age began in Southeastern Europe around 3700–3300 BC, in Northwestern Europe about 2500 BC. It ended with the beginning of the Iron Age, 2000–1000 BC in the Near East, and 600 BC in Northern Europe. The transition between
12412-438: The sugar is signaled by a color change from blue Cu(II) to reddish copper(I) oxide. Schweizer's reagent and related complexes with ethylenediamine and other amines dissolve cellulose . Amino acids such as cystine form very stable chelate complexes with copper(II) including in the form of metal-organic biohybrids (MOBs). Many wet-chemical tests for copper ions exist, one involving potassium ferricyanide , which gives
12528-399: The top kilometer of Earth's crust, which is about 5 million years' worth at the current rate of extraction. However, only a tiny fraction of these reserves is economically viable with present-day prices and technologies. Estimates of copper reserves available for mining vary from 25 to 60 years, depending on core assumptions such as the growth rate. Recycling is a major source of copper in
12644-552: The upper part of the outer rim were the Traditional Chinese characters "光緒年造" (and later "宣統年造") written from right to left, meaning "minted during the Guangxu (or Xuantong) years" (same as the meaning of the Manchu text inscribed near the upper part of the outer rim on the obverse side). Near the lower part of the outer rim was the text, written in English, "Tai-Ching-Ti-Kuo Copper Coin", where "Tai-Ching-Ti-Kuo" refers to
12760-628: The world. Other important crops include sorghum and maize . Shandong has extensive petroleum deposits as well, especially the Shengli Oil Field (lit. Victory Oilfield) in the Dongying area in the Yellow River delta. Shandong also produces bromine from underground wells and salt from seawater. It is the largest agricultural exporter in China. Shandong is one of China's richest provinces, and its economic development focuses on large enterprises with well-known brand names. Shandong
12876-527: Was found in 1857 on the Keweenaw Peninsula in Michigan, US. Native copper is a polycrystal , with the largest single crystal ever described measuring 4.4 × 3.2 × 3.2 cm . Copper is the 26th most abundant element in Earth's crust , representing 50 ppm compared with 75 ppm for zinc , and 14 ppm for lead . Typical background concentrations of copper do not exceed 1 ng/m in
12992-485: Was home to a succession of Neolithic cultures for millennia, including the Houli ( c. 6500–5500 BC ), Beixin ( c. 5300–4100 BC ), Dawenkou ( c. 4100–2600 BC ), Longshan ( c. 3000–2000 BC ), and Yueshi cultures ( c. 1900–1500 BC ). The Shang and Zhou dynasties exerted varying degrees of control over western Shandong, while eastern Shandong
13108-572: Was inhabited by Dongyi peoples, who were considered barbarians by the inhabitants of the Central Plain . Following the annexation of Lai [ zh ] by the state of Qi in 567 BC, the Dongyi gradually became sinicized . During the Spring and Autumn and Warring States periods , power was accumulated by regional states; Shandong was home to the state of Qi based in Linzi , and
13224-468: Was one of the first places where the Boxer Rebellion broke out, and became one of the centers of the uprising. In 1899, Qing general Yuan Shikai was appointed governor of the province to suppress the uprising. He held the post for three years. Germany took control of the peninsula in 1898, leasing Jiaozhou Bay and its port of Qingdao under threat of force. Development was a high priority for
13340-480: Was proclaimed in October of that year. Under the new government, parts of western Shandong were initially given to the short-lived Pingyuan Province , but this did not last. Shandong also acquired the Xuzhou and Lianyungang areas from Jiangsu province, but this did not last either. For the most part, Shandong has kept the same borders that it has today. About six million people starved to death in Shandong during
13456-496: Was supposed to be the standard coinage of the entire Qing empire as opposed to provincial coinages. In modern English sources, the coinage is often referred to as the "Great Qing Copper Coin" or the "Qing Dynasty Copper Coin", along with pinyin transliterations from the Chinese name "大清銅幣" such as "Da-Qing Tongbi", "Da Qing Tong Bi", and "Daqing Tongbi". The Qing dynasty had a bimetallic coinage system, and similar titles were also used for other standardised metal coinages such as
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