Potassium sulfates (Potassium sulphates, Potassium sulfate, Potassium hydrogen sulfate, sulfate of potash, potassium sulfate, potassium hydrosulfate, E515) — the potassium salt of sulfuric acid.
The chemical formula is K2SO4. Colorless crystals, soluble in water.
Types of potassium sulfates:
- (i) potassium sulfate);
- (ii) potassium hydrosulfate.
The main use of potassium sulfates is fertilizer. Raw salt is also used in the production of glass.