Chemical formula: NH4H2PO4 Molecular weight: 115 Standard executed: Q/70894764 01-1998 Properties: White granular crystal; Relative density at 1. 803, melting point at 190'C, easily soluble in water, slightly soluble in alcohol, insoluble in ketone, PH value of 1% solution is 4. 5. Technical specifications: No Specifications Industrial Grade Food Grade 1 Main contents%min 99. 0 99. 0 2 Phosphorus pentoxide%min 61. 0 61. 0 3 Nitrogen, as N %min 11. 8 11. 8 4 PH value (1% solution) 4. 4-4. 8 4. 4-4. 8 5 Moisture%max 0. 2 0. 2 6 Heavy metal, as Pb%max 0. 001 7 Arsenic, as As%max 0. 0003 8 Fluoride as F%max 0. 005 9 Water insoluble %max 0. 10 0. 10 Application: As a fire-prevention agent for fabric, timber and paper, as well as a fire-prevention coating, and dry powder for fire extinguisher. For food grade it is mainly used as a fermentation agent, nourishment, and so _disibledevent=P2O5) is at 73%, and may be used as a basic raw material for N, P and K compound fertilizer. Packaging: Plastic-woven sack, net weight at 25kg, 50kg or 1, 000kg. Store at a ventilated, dry place.