It acts as a buffering agent in biochemical and molecular biology labs pH regulatoremulsifier in food processing laxative in pharmaceuticals and nutrient source in fertilizers or cell culture media.

Its primary purpose is buffering at pH 4.57 via HPOHPO equilibrium stabilizing biologicalmedia solutions and enabling precise pH control in titrations.

Sodium phosphate monobasic dihydrate is a white crystalline water-soluble salt commonly used in buffering and food applications.