Monopotassium Phosphate is the monopotassium salt of phosphoric acid with the formula KH2PO4. It is freely soluble in water and insoluble in ethanol. Commercially available as pure KH2PO4, when reacted with MgO, produces high-quality ceramics. It is formed by the chloride or potassium carbonate reaction with phosphoric acid, and the phosphate is derived in a pure form as a crystalline material.

Properties of Monopotassium Phosphate

Chemical Formula : KH2PO4

Appearance : White powder, deliquescent

Density : 2.34 g/cm³

Molecular Weight/ Molar Mass : 136.086 g/mol

Boiling Point : 400 °C

Melting Point : 252.6 °C

Odour : No odour

Solubility : Soluble in water

Uses of Monopotassium Phosphate

Used as a fertilizer because it contains potassium and phosphate that can be applied to both the soil and foliage.

Used in the manufacture of sodium phosphates, ammonium phosphates, calcium phosphates and other phosphates.

For colour preservation, it is used in eggs and is also used in low-sodium products, meat products and milk products.