Silicotungstic Acid

Other name: Tungstosilicic acid hydrate, Tungsten hydroxide oxide silicate
CAS no. : 11130-20-4; 12027-38-2; 12363-31-4; 12520-88-6
EINECS no. : 234-719-8
Molecular formula: H4SiW12O40路XH2O
Molecular weight: 2878.1733

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Specification:
Industrial grade,
WO3鈮84%
SiO2 1.7-2.4%

Chemically pure (CP grade)
WO3鈮84%
SiO2 1.8-2.3%
Water insoluble matter鈮0.02%
Chloride (CI)锕0.03%
Sulphate (SO4)鈮0.02%
Nitrate (NO3)鈮0.02%
Heavy metals (Pb)鈮0.005%

White or light yellow deliquescent crystal, soluble in water and alcohol. Solubility in water: 0.1g /mL, which will be clear and transparent after dissolution. Is soluble in water of crystallization of heating, heating to 600 ~ 650 鈩

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