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tungsten
tungsten
tungsten (wolfram, symbol W) Silvery-grey, hard, metallic element, one of the
transition elements. Tungsten has the highest melting point of all metals and is used for lamp filaments and in special alloys. Tungsten carbide is used in high-speed cutting tools. Chemically, tungsten is fairly unreactive; it oxidizes only at high temperatures. Properties: at.no. 74; r.a.m. 183.85; r.d. 19.3; m.p. 3410°C (6170°F); b.p. 5660°C (10,220°F); most common isotope W
184 (30.64%).
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Tungsten concentrate price increases due to new export tax rebate policy.
Newspaper article from: China Business News; 12/22/2005; 700+ words
; Tungsten concentrate price increases due to new...December 22. INTERFAX-CHINA - The price of tungsten hit a new high of RMB 110,000 (USD...Chinese government's tax rebate policy on tungsten exports. The government plans to slash...
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Xiamen Tungsten Co., Ltd (XTC) And China Tungsten Industry Report - 2009 Edition.
M2 Presswire; 10/21/2009; 700+ words
; ...October 2009-Research and Markets: Xiamen Tungsten Co., Ltd (XTC) And China Tungsten Industry Report - 2009 Edition(C)1994...has announced the addition of the "Xiamen Tungsten Co., Ltd (XTC) And China Tungsten Industry...
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Xiamen Tungsten Co., Ltd XTC and China Tungsten Industry Report - 2009 Edition.(Report)
Newspaper article from: China Weekly News; 11/3/2009; 700+ words
; ...xiamen_tungstenco) has announced the addition of the "Xiamen Tungsten Co., Ltd (XTC) And China Tungsten Industry Report, 2009" report to their offering. China's tungsten reserve ranks the first place in the world The tungsten exploiting...
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Reportlinker Adds Tungsten - A Worldwide Market Review.
PR Newswire; 11/20/2009; 700+ words
; ...is available in its catalogue. Tungsten - A Worldwide Market Review http...reportlinker.com/p0164500/Tungsten---A-Worldwide-Market-Review...utm_campaign=prnewswire Though tungsten demand is persistently growing owing...
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Tungsten firms call for price alliance
Newspaper article from: China Daily; 3/8/2005; ; 700+ words
; China's tungsten enterprises have called for the formation of an...bring an end to the current spate of skyrocketing tungsten prices. At a meeting in Beijing yesterday, the China Tungsten Industry Association urged enterprises to establish...
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China's tungsten concentrate imports down but tungsten product imports up in Q1.
Newspaper article from: China Business News; 4/30/2007; 700+ words
; China's tungsten concentrate imports down but tungsten product imports up in Q1 Shanghai. April 30. INTERFAX-CHINA - China imported 1112.8 tons of tungsten concentrate in the first quarter of this year, down 19...
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Tungsten industry finds it difficult to control concentrate prices as they soar still higher.
Newspaper article from: China Business News; 6/2/2005; 700+ words
; Tungsten industry finds it difficult to control concentrate...Shanghai. June 2. INTERFAX-CHINA - With tungsten prices continuing to skyrocket for 5 consecutive months, representatives from tungsten mines, smelters, processing companies...
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Tungsten: properties, processing, and applications.(Refractory Metals Forum)
Magazine article from: Advanced Materials & Processes; 11/1/1998; ; 700+ words
; Tungsten has a variety of special applications...was coordinated by Dr. Boris Bryskin. Tungsten, element 74 on the periodic chart, was...conductivity (see table). Single crystals of tungsten are elastically isotropic and have very...
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Tungsten Market Review Report Features Major Tungsten Producers, Prices, Supply And Demand Conditions and Future Outlook of the Market.
M2 Presswire; 12/1/2008; 700+ words
; ...1 December 2008-Research and Markets: Tungsten Market Review Report Features Major Tungsten Producers, Prices, Supply And Demand Conditions...researchandmarkets.com/research/b22b3e/tungsten_market_re) has announced the addition...
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Xiamen Tungsten quits a mining project in Australia.
Newspaper article from: China Business News; 3/21/2007; 700+ words
; Xiamen Tungsten quits a mining project in Australia Shanghai. March 21. INTERFAX-CHINA - Xiamen Tungsten Co. Ltd., China's largest tungsten processing company, announced yesterday it has abandoned...
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Tungsten (revised)
Book article from: Chemical Elements: From Carbon to Krypton
TUNGSTEN (REVISED) Note: This article, originally...2006 for the eBook edition. Overview Tungsten is a transition metal. The transition...physical and chemical properties. One of tungsten's unusual properties is its very high...
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Tungsten
Book article from: Chemistry: Foundations and Applications
Tungsten melting point: 3,422 ± 15...cm3 most common ions: WO42− Tungsten is a metallic transition element in Period...mineral. The name was later changed to tungsten, derived from the Swedish words tung...
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tungsten
Book article from: The Columbia Encyclopedia, Sixth Edition
tungsten [Swed.,=heavy stone], metallic...valence +2, +3, +4, +5, or +6. Tungsten is a very hard, silver-white to steel...from this name; in naming compounds of tungsten, use of the name wolfram as a root is...
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Periodic Table of the Elements: Tungsten
Book article from: The Columbia Encyclopedia, Sixth Edition
Periodic Table of the Elements: Tungsten Periodic Table of the Elements: Tungsten Atomic Number: 74 Atomic Symbol: W Tungsten Atomic Weight: 183.85 Electron Configuration: 2 · 8 ·&thinsp...
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tungsten carbide
Book article from: The Oxford Pocket Dictionary of Current English
tung·sten car·bide • n. a very hard gray compound, WC (or W 2 C), made by reaction of tungsten and carbon at high temperatures, used in making engineering dies, cutting and drilling tools, etc.
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