Ammonium dihydrogen phosphate (ADP), also known as monoammonium phosphate (MAP) is a chemical compound with the chemical formula (NH4)(H2PO4). It's colorless crystal or white crystalline powder, tasteless. ADP is a major ingredient of agricultural fertilizers and some fire extinguishers. It also has significant uses in optics and electronics.

Specification
Appearance: White crystalline powder or colorless crystal
Assay( NH4H2PO4) W/%:96-102
Fluorides mg/kg≤10
Arsenic mg/kg≤3
Lead mg/kg≤4

Application
Agriculture
The largest use of monoammonium phosphate by weight is in agriculture, as an ingredient of fertilizers. It supplies soil with the elements nitrogen and phosphorus in a form usable by plants.
Industry
Mainly used as a fire-prevention agent for fabric, timber and paper, as well as a fire-prevention coating, and dry powder for fire extinguisher.
Food additives
For production of yeast, food water retention agent and additives.
Feed additive
Additive of compound feed for ruminant.

Precautions
Keep container tightly closed.
Store in a dry place.