Home Chemnovo Acids-Inorganic Silicotugstic Acid 99.5% AR
02313
Silicotugstic Acid 99.5% AR
Tungstosilicic acid hydrate
CAS : 12027-43-9
HS Code : 2811.19900
Molecular Formula : H4(SiW12O40)xH2O
Molecular Weight : 2878.17
Physical Properties
Physical state at 20 °C
Solid |
Colour
Slight yellow |
Odour
Odorless |
pH value
Acidic |
Melting point/ Freezing point [°C]
25°C |
Density [g/cm3]
4.5 |
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 (N)
Max 0.002% |
Heavy metal (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°C)
Max 16.0% |
Safety Information and Hazard Symbols
Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338
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