Chemical formula: K2SO4 molecular weight: 174.24 boiling point: 1689 °C
Density: 2.66 g/cm3 melting point: 1069 °C
Colorless or white hexagonal or orthorhombic crystalline or granular powder, soluble in water, insoluble in alcohol, acetone and carbon disulfide, bitter salty taste. Soluble in water, insoluble in ethanol, acetone, carbon disulfide.
It is a basic raw material for the manufacture of various potassium salts such as potassium carbonate and potassium persulfate. The glass industry is used as a scavenger. The dye industry is used as an intermediate. Spice industry as an auxiliary agent. The pharmaceutical industry is also used as a laxative. Potassium sulfate is a commonly used potassium fertilizer in agriculture. The potassium content is about 50 %. It is commonly known as "Baijiali" in Taiwan. In addition, potassium sulfate is also used in the industry for glass, dyes, spices, medicines, etc..