Sodium Tungstate

CAS

10213-10-2

Molecular Formula

Na₂WO₄ 2H₂O

Molecular Weight g/mol

329.85

Item, Unit

Typical

Appearance

White cristaline powder

Assay %, min.

99

Wo3, %, max.

70

Chloride (CL-), %, max.

0.010

Heavy metal as Pb, %, max.

0.005

Fe (iron), %, max.

0.001

Sulphate (SO4), %, max.

0.001

Ammonium (NH4), %, max.

0.0005

Acidity, %, max.

0.002

Alkalinity, %, max.

0.0002

Insoluble in water, %, max.

0.02

Arsenic (AS), %, max.

0.005

Copper (Cu), %, max.

0.001

Nitrate (NO3), %, max.

0.002

PH 2% solution

8.5-9.00

Molybedenum, %, max.

0.010