Description
Mono-Ammonium Phosphate (MAP), also known as ammonium dihydrogen phosphate ((NH_{4}H_{2}PO_{4})), is a widely used crystalline chemical compound primarily valued for its high nutrient density in agriculture and its efficacy as a fire suppressant
Primary Uses Agriculture (Fertilizer): Often labeled as 12:61:00, it provides a concentrated source of phosphorus (61% (P_{2}O_{5})) and nitrogen (12% (N)). It is 100% water-soluble, making it ideal for fertigation (drip irrigation) and foliar sprays.Fire Safety: It is the main ingredient in ABC dry chemical fire extinguishers. It appears as a fine yellow powder that melts to smother flames and interrupt the chemical reaction of a fire.Industrial: Used as a pH buffer, a flame retardant for wood and paper, and a nutrient in yeast fermentation.Optics & Electronics: Due to its birefringence and piezoelectric properties, it is used in sonar transducers and optical devices.