Characteristic

Potassium bisulfate is an inorganic compound with the chemical formula KHSO₄ and is the potassium acid salt of sulfuric acid. It is a white, water-soluble solid.

Chemical formula:KHSO₄

Molar mass:136.169 g/mol

Appearance:colorless solid

Odor:odorless

Density:2.245 g/cm³

Melting point:197 °C (387 °F; 470 K)

Boiling point:300 °C (572 °F; 573 K) (decomposes)

Solubility in water:36.6 g/100 mL (0 °C);49 g/100 mL (20 °C);121.6 g/100 mL (100 °C)

Solubility:soluble in acetone, ethanol.

Magnetic susceptibility (χ):−49.8·10−6 cm³/mol

Application

Potassium hydrogen sulfate is used in the conversion of tartrates to bitartrates in wine. It serves as a disintegrating agent in analytical chemistry and as an intermediate in the preparation of potassium persulfate by electrolysis. It is also employed in the manufacturing of fertilizers