Sodium hydrogen phosphate is used in food and water treatment in conjunction with trisodium phosphate. It is used as an emulsifier and buffer in foods and pharmaceuticals, anti-caking additive in powdered products, dietary supplement, scale inhibitor, reagent and buffer in analytical chemistry.

Description

Synonyms: sec-Sodium phosphate, Disodium hydrogen phosphate, Disodium phosphate, Sodium hydrogenphosphate, Sodium phosphate dibasic
Formula: Na2HPO4

Disodium hydrogen phosphate anhydrous is typically used in the preparation of phosphate based buffer. The pKa of 6.82 at 25°C makes phosphate based buffer a universal buffer for biological applications.

Note:
AR: Analitycal Reagent Grade: Reagents for analytical purpose or research work that need high purity.
CP: Chemically Pure Grade: Reagents for regular practical in its original purity.