In addition to being used as an ingredient in various fertilizers, ammonium polyphosphate is also used as an important chemical for fighting forest and mountain fires, and as a fire retardant impregnating agent for wood. Ammonium polyphosphate solution with 11% nitrogen and 37% phosphorus pentoxide made from thermal superphosphate can be used as a basic chemical to extinguish forest and mountain fires, and also as a fire retardant impregnating agent for wood used in construction. Ammonium polyphosphate base solution containing 10% nitrogen and 34% phosphorus pentoxide made from wet phosphoric acid can be used as raw material for preparing liquid composite fertilizer of various specifications.
The conventional particle size of ammonium polyphosphate is 14-15 microns, and the particle size of less than 10 microns can be customized according to customer requirements.