PRODUCT Properties
| Melting point: | 921 °C (lit.) |
| Density | 3.12 g/mL at 25 °C (lit.) |
| solubility | very soluble in H2O; insoluble in ethanol |
| form | Powder |
| Specific Gravity | 3.12 |
| color | white |
| Water Solubility | Soluble in water. |
| Sensitive | Hygroscopic |
| Merck | 14,7694 |
| Exposure limits | ACGIH: TWA 3 mg/m3 NIOSH: TWA 5 mg/m3; STEL 10 mg/m3 |
| CAS DataBase Reference | 7790-60-5(CAS DataBase Reference) |
| EPA Substance Registry System | Tungstate (WO42-), dipotassium, (T-4)- (7790-60-5) |
Description and Uses
Potassium tungsten oxide is used in solar energy and water treatment applications. It is used as alkaloids precipitating agent, bronze production and in tungsten refining. It is also used as an analytical reagent. Further, it is added to molten carbonate fuel cell to prevent the corrosion of stainless-steel separator and retards the sintering of the anode.
Safety
| Symbol(GHS) |  GHS05 |
| Signal word | Danger |
| Hazard statements | H314 |
| Precautionary statements | P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501 |
| RIDADR | 3288 |
| WGK Germany | 1 |
| TSCA | Yes |
| HazardClass | 6.1(b) |
| PackingGroup | III |
