Sodium tungstate dihydrate CAS 10213-10-2
Colorless crystals or white orthorhombic crystals. It is soluble in water and slightly alkaline. Insoluble in ethanol, slightly soluble in ammonia.
| Item | Specifications |
| WO3 | ≥69.0% |
| MO | ≤0.02% |
| As | ≤0.002% |
| Cu | ------ |
| Fe | ≤0.002% |
| SO4 | ≤0.02% |
| Si | ------ |
| Water insoluble | ≤0.01% |
| PH | 8~9 |
| Heavy metal (as Pb) | ≤0.002% |
| Cl | ≤0.03% |
| Conclusion | The results conforms with Enterprise standards |
Application:
The largest use for inorganic tin compounds is in electrolytes for plating tin and tin alloys. The more important plating chemicals are chlorides, sulfates, and fluoroborates in acidic electrolytes and stannates in alkaline solutions. Inorganictin compounds are divided into two series: stannous, or tin(II), compounds and stannic, or tin(IV), compounds.Chemically, tin exhibits valencies of 2 and 4. It resists attack by water but is dissolved by strong acids and alkalis.