Specification :

  Molecular Formula:WO3

  Appearance: Light yellow crystallized powder.

  Apparent Density:2.5-3.0g/cm3

  Application: Mainly used as the raw material for cemented carbide, tungsten powder-base alloy product, vacuum electronic device and electro-optical device and chemical industry as well.

Grade and Chemical Composition:
Grade WO3-0 WO3-1 WO3-2 WO3-Cr

Purity Min.(%) 99.98 99.95 99.90

Content of Other Chemical Element

Max.(%)
Al 0.0005 0.001 0.001 0.001
As 0.001 0.001 0.002 0.002
Bi 0 .0001 0.0 001 0.0005 0.0001
Ca 0.001 0.001 0.003 /
Co 0.001 0.001 0.002 /
Cr 0.001 0.0 01 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 0.00 1
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 0.00 1 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 .0001 0.001 0.002 /
V 0.001 0.001 0.002 /