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SILICOTUNGSTIC ACID AR
| Article No. | Grade | Purity | CAS No. | Molecular Formula | Molecular Weight | H.S. Code | Shelf Life |
|---|---|---|---|---|---|---|---|
| SC0132 | AR | 99.50% | 12027-43-9 | H4(SiW12O40)xH2O | 2878.17 (anhydrous basis) | 2811.1990 | 60 Months |
Packings
| 25 g,100 g |
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 |
| UN No. | |
| IMCO Class No. | |
| Packing Group | |
| Hazardous Statement | H315-H319-H335 |
| Precaution Statement | P261-P305 + P351 + P338 |
| Risk Statement | |
| Safety Statement | |