monoammóniumfoszfát

Monoammonium phosphate, often abbreviated as MAP, is an inorganic salt with the chemical formula NH4H2PO4. It is formed from the reaction of ammonia and phosphoric acid. MAP is a white crystalline solid that is soluble in water. It is a common ingredient in fertilizers due to its high content of nitrogen and phosphorus, which are essential nutrients for plant growth. MAP is considered a readily available source of these nutrients for plants. The ammonium ion (NH4+) provides nitrogen, while the dihydrogen phosphate ion (H2PO4-) provides phosphorus. This combination makes it a popular choice for both agricultural and horticultural applications.

Beyond its use as a fertilizer, monoammonium phosphate also finds application as a component in dry powder fire extinguishers. It works by releasing phosphorus oxide, which forms a glassy coating on burning material, effectively smothering the flames. MAP can also be used in the food industry as a dough conditioner and a leavening agent. Its production typically involves reacting ammonia gas with phosphoric acid under controlled conditions to precipitate the salt.