Products

Tungsten Oxide Powders

Japan New Metals can produce tungsten tri-oxide with over 3N purity , using hydrometallurgical technology.
High purity tungsten tri-oxcide (4N) and single particle type are also available on request.

Application

An additives for optical glass lenses to increase refractive index.
Auxiliary materials in pigments for ceramics.

Tungsten Oxide Powder

Grade Chemical ingredients （％）
WO3 Ig.loss N.V.R Fe Mo
WO3-1 ≧99.90 ≦0.60 ≦0.010 ≦0.010 -
WO3-4 ≧99.90 ≦0.35 ≦0.010 ≦0.005 ≦0.010

100％ Recycled Tungsten Oxide Powder

Grade Chemical ingredients （％）
WO3 Ig.loss Fe Mo Cr Cu Mg
WO3-5
 ≧99.95 ≦0.50 ≦0.002 ≦0.010 ≦0.010 ≦0.010 ≦0.010

 

<Remarks>

  1. Chemical Composition of WO3 for WO3-1: 100 - (N.V.R.%+Fe%)
    Chemical Composition of WO3 for WO3-4: 100 - (N.V.R.%+Fe%+Mo%)
    Chemical Composition of WO3 for WO3-5: 100 - (Fe%+Mo%+Cr％+Cu％+Mg％)
  2. N.V.R. : Non volatil Residue, total amount of Al, Ca, Mg, and Si converted into oxides.
HOME Page Top