Diammonium hydrogen phosphate is an inorganic substance with molecular formula (NH4) 2HPO4 and molecular weight of 132.06. It is colorless, transparent monoclinic crystal or white powder.

It is widely used in printing plate making, fire prevention, electronic tube, etc. it is a fertilizer widely used in vegetables, fruits, rice and wheat. It is used as feed additive, flame retardant and fire extinguishing agent in industry.

1. Industrial grade is used to impregnate wood and fabrics to increase their durability;

2. In the food industry, it is used as food bulking agent, dough regulator, yeast feed and fermentation assistant for brewing;

3. Fertilizer grade is mainly used as high concentration nitrogen and phosphorus compound fertilizer, which is widely used in vegetables, fruits, rice and wheat;

4. Feed additive for ruminants;

5. Used as analytical reagent, buffer and water softener;

6. It can be used as dry powder fire extinguishing agent and phosphorus for fluorescent lamp;

7. It is used for printing plate making, manufacturing of electronic tubes, ceramics and enamel, and biochemical treatment of wastewater;

8. Flame retardant used as thermal insulation material for rocket engine motor.