Sodium dihydrogen phosphate is an inorganic monobasic sodium phosphate compound with the chemical formula NaH₂PO₄. Sodium dihydrogen phosphate is a derivative composed of glycerol derivatives formed by reacting mono and diglycerides that are derived from edible sources with phosphorus pentoxide followed by neutralization with sodium carbonate. Sodium dihydrogen phosphate is a soluble form of phosphate that can be administered intravenously.

Properties of Sodium dihydrogen phosphate 

Chemical Formula : NaH₂PO₄

Appearance : White powder or crystals

Density : 2.36 g/cm³ (anhydrous)

Molecular Weight : 119.98 g/mol

Melting Point : 200℃

Odour : Odourless

Solubility : Soluble in water; insoluble in alcohol

Other names : Monobasic sodium phosphate, Monosodium phosphate 

Uses of Sodium dihydrogen phosphate 

Used for water treatment were generally safe, high concentrations had the potential for interfering with human essential trace metal metabolism.

Phosphorus in domestic sewage may be derived from human wastes, waste food (primarily from household garbage- disposal units), and synthetic detergents.

Reducing the amount of phosphorus reaching the sewage treatment works by concerted public campaigns can reduce the costs of stripping gas or vapour from a foam.