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Silicotungstic Acid


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 SILICO TUNGSTIC ACID
Tungstosilicic acid hydrate
 
Purity                                                  : 99.5%
CAS No.                                             : 12027-43-9
Molecular Formula                              : H4(SiW12O40)xH2O
Molecular Weight                               : 2878.17 (anhydrous basis)
H.S. Code                                           : 2811.1980
pH value                                              : Acidic
Solubility in water [% weight]            : Soluble in water

 
Specifications
 
Appearance
Slightly yellow colored powder
Assay
Min 99.5%
Chloride (Cl)
Max 0.001%
Sulphate (SO4)
Max 0.005%
Total Nitrogen
Max 0.002%
Heavy metals (as Pb)
Max 0.002%
Iron (Fe)
Max 0.001%
Sodium (Na)
Max 0.02%
Potassium (K)
Max 0.02%
Loss on ignition (at 750 degC)
Max 16.0%
 
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