Potassium thiostanate - an inorganic compound, thiosol of potassium and tin acid with the formula K 2 SnS 3 , dissolved in water, forms crystalline hydrates .
| Potassium thiostanate | |
|---|---|
| Are common | |
| Systematic name | Potassium thiostanate |
| Traditional names | Potassium Dioxide |
| Chem. formula | K 2 SnS 3 |
| Physical properties | |
| Molar mass | 293.10 g / mol |
| Density | trihydrate - 1,847 g / cm³ |
Getting
- Dissolution of tin disulfide in potassium hydroxide solution:
Physical Properties
Potassium thiostanate forms crystalline hydrates of the composition K 2 SnS 3 • n H 2 O, where n = 2 and 3.
Soluble in water, not soluble in ethanol .
K 2 SnS 3 • 3H 2 O crystalline hydrate is a dark brown liquid.
K 2 SnS 3 • 2H 2 O crystalline forms rhombic crystals, space group P nma , cell parameters a = 0.6429 nm, b = 1.5621 nm, c = 1.0569 nm.
Literature
- Chemist Handbook / Redkol .: Nikolsky B.P. et al. - 3rd ed., Rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.
- Manual on inorganic synthesis: B 6 tons / Ed. Brower G. .. - M .: Mir, 1985. - T. 3. - 392 p.