Formula: (NH4)10W12O41·5H2O
CAS No: 11120-25-5
M.W: 3132.64
Properties: Ammonium paratungstate is a chemical with the formula (NH4)10W12O41·5H2O. Monoclinic crystals are fine transparent crystals or white crystals. Relative density 2.3. Soluble in water, insoluble in ethanol. Aqueous solution is weakly acidic
Specification :
| ITEMS | RESULT |
| WO3 | 85-89 |
| Insoluble in H2O not more | 0.02%MAX |
| SO4 not more | 0.05%MAX |
| Cl | 0.02%MAX |
| Fe | 0.002%MAX |
| MO | 0.005%MAX |
| SI | 0.002%MAX |
| K | 0.003%MAX |
| NA | 0.003%MAX |
| AL | 0.002%MAX |
| CU | 0.002%MAX |
| CA | 0.002%MAX |
Storage: Store at dry and ventilating place, avoid damp and keep away from food and acid..
Packing: in net 25kg drum/250kg drum.
