Tungsten Trioxide

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Tungsten Trioxide
Posting date : Aug 05, 2008
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81-
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Molecular Formula: WO3 Appearance: Light yellow crystallized powder Sieve Size: 250um(-60 mesh) Apparent Density: 2.5~3.0g/cm3 Application: Mainly used as the raw material for cemented carbide,tungsten powder,W-base alloy,vacuum electronic decice and electro-optical device and chemical industry as well Grade WO3-0 WO3-1 WO3-2 WO3-Cr Purity Min.(%) 99.98 99.95 99.90 - Impurities Max.(%) AI 0.0005 0.001 0.001 0.001 As 0.001 0.001 0.002 0.002 Bi 0.0001 0.0001 0.0005 0.0001 Ca 0.001 0.001 0.003 - Co 0.001 0.001 0.002 - Cr 0.001 0.001 0.001 0.32-0.40 Cu 0.0003 0.0005 0.001 0.001 Fe 0.001 0.001 0.003 0.003 K 0.001 0.0015 0.002 0.002 Mg 0.0005 0.001 0.002 - Mn 0.0005 0.001 0.001 0.001 Mo 0.002 0.005 0.02 - Na 0.001 0.0015 0.003 0.002 Ni 0.0005 0.0007 0.001 0.001 P 0.0005 0.001 0.003 0.003 Pb 0.0001 0.0001 0.0005 0.0003 S 0.0005 0.001 0.001 0.0001 Sb 0.0005 0.001 0.002 0.0002 Si 0.001 0.001 0.003 0.0002 Sn 0.0001 0.0005 0.0005 0.0005 Ti 0.001 0.001 0.002 - V 0.001 0.001 0.002

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