Description
| CAS | 12027-43-9 |
| Molecular Formula | H4(SiW12O40)xH2O |
| Molecular Weight | 2878.17 |
| Shelf Life | 60 Months |
| 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% |
| Dangerous Goods Information | |||
| UN Number | – | DG Class | – |
| Safety Information & Hazard Symbols | |
| Symbol | GHS07 |
| Signal Word | Warning |
| Hazard Statement | H315-H319-H335 |
| Precaution Statement | P261-P305 + P351 + P338 |















