A.L.M.T. Corp.

Tungsten trioxide powder

Tungsten trioxide powder

Our high-purity tungsten trioxide powder is manufactured by chemically refining tungsten raw material.
It is used to implove electrical characteristics (as dielectrics for piezoelectric ceramics) for secondary batteries, scintillators and ceramics
(image is "F1-WO₃")

三酸化タングステン粉

Tungsten trioxide powder

To see the whole table, scroll sideways.

Type Particle size (μm) WO3(%) NVR(%) Fe(%) Mo(%)
F1-WO3 0.5~1.2 ≧99.9 ≦0.010 ≦0.002 ≦0.010
A2-WO3 7~12 ≧99.9 ≦0.010 ≦0.001 ≦0.010
C3-WO3 15~20 ≧99.9 ≦0.010 ≦0.001 ≦0.010

"Particle size" is the average particle diameter according to the Fischer method.
NVR:Non Volatile Residue by Chlorination

High-purity tungsten trioxide powder

To see the whole table, scroll sideways.

Type WO₃(%) Fe(ppm) Mo(ppm) U(ppb) Th(ppb)
A5-WO₃ ≧99.999 ≦1 ≦1 ≦1 ≦1