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dissolving impurity

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  • copper processing — Introduction  use of smelting or leaching, usually followed by electrolytic refining or recovery, to turn the ore into a form from which products can be fashioned. Included in this article also is a discussion of the mining of copper and of its… …   Universalium

  • List of Biblical names — This is a list of names from the Bible, mainly taken from the 19th century public domain resource: : Hitchcock s New and Complete Analysis of the Holy Bible by Roswell D. Hitchcock, New York: A. J. Johnson, 1874, c1869.Each name is given with its …   Wikipedia

  • Lead(II) nitrate — Lead(II) nitrate …   Wikipedia

  • metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… …   Universalium

  • Silicon — Not to be confused with the silicon containing synthetic polymer silicone. aluminium ← silicon → phosphorus C ↑ Si ↓ Ge …   Wikipedia

  • List of purification methods in chemistry — Purification in a chemical context is the physical separation of a chemical substance of interest from foreign or contaminating substances. The following list of chemical purification methods should not be considered exhaustive. * Filtration is a …   Wikipedia

  • turkey — /terr kee/, n., pl. turkeys, (esp. collectively) turkey. 1. a large, gallinaceous bird of the family Meleagrididae, esp. Meleagris gallopavo, of America, that typically has green, reddish brown, and yellowish brown plumage of a metallic luster… …   Universalium

  • Turkey — /terr kee/, n. a republic in W Asia and SE Europe. 63,528,225; 296,184 sq. mi. (767,120 sq. km). (286,928 sq. mi. (743,145 sq. km) in Asia; 9257 sq. mi. (23,975 sq. km) in Europe). Cap.: Ankara. Cf. Ottoman Empire. * * * Turkey Introduction… …   Universalium

  • United Kingdom — a kingdom in NW Europe, consisting of Great Britain and Northern Ireland: formerly comprising Great Britain and Ireland 1801 1922. 58,610,182; 94,242 sq. mi. (244,100 sq. km). Cap.: London. Abbr.: U.K. Official name, United Kingdom of Great… …   Universalium

  • Ruthenium — (pronEng|ruːˈθiːniəm) is a chemical element that has the symbol Ru and atomic number 44. A rare transition metal of the platinum group of the periodic table, ruthenium is found associated with platinum ores and used as a catalyst in some platinum …   Wikipedia

  • Terbium — (pronEng|ˈtɝbiəm) is a chemical element with the symbol Tb and atomic number 65. Characteristics Terbium is a silvery white rare earth metal that is malleable, ductile and soft enough to be cut with a knife. It is reasonably stable in air (it… …   Wikipedia

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