MONO AMMONIUM PHOSPHATE (TECHNICAL GRADE)

Mono Ammonium Phosphate (MAP) is a widely used source of phosphorus (P) and nitrogen (N). It’s made of two constituents common in the fertilizer industry and contains the most phosphorus of any common solid fertilizer. The process for manufacturing MAP is relatively simple. In a common method, a one-to-one ratio of ammonia (NH3) and phosphoric acid (H3PO4) is reacted and the resulting slurry of MAP is solidified in a granulator. The second method introduces the two starting materials in a pipe-cross reactor, where the reaction generates heat to evaporate water and solidify MAP. Other methods exist as well. An advantage of manufactured MAP is that lower-quality H3PO4 can be used compared with other P fertilizers often requiring a purer grade of acid. The phosphorus pentoxide (P2O5) equivalent content of MAP varies from 48 to 61 percent, depending on the amount of impurity in the acid