Dipotassium Phosphate is the dipotassium salt of phosphoric acid with the chemical formula K2HPO4. It is freely soluble in water and insoluble in ethanol. The reaction chemistry for the production of dipotassium phosphate appears as a condensation of phosphoric acid using potassium hydroxide. Phosphoric acid is in turn manufactured from phosphate rock, which is found in several places throughout the world.

Properties of Dipotassium Phosphate 

Chemical Formula : K2HPO4

Appearance : White powder; deliquescent

Density : 2.44 g/cm³

Molecular Weight/ Molar Mass : 174.2 g/mol

Melting Point : > 465 °C

Odour : Odourless

Solubility : Soluble in water

Uses of Dipotassium Phosphate 

Dipotassium phosphate is used in fertilizers, due to the highly water-soluble property it is often used because it delivers a high amount of phosphorous to the growing plants.

Used as a food additive, but the grades are different for food versus fertilizer use.

Used to increase the pH of milk which would increase micellar net charge.

Used as a competitive displacement of calcium by sodium in the micelles.