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Chemical formula: (NH4)2HPO4
Molecular weight: 132.0
Standard executed: Q/62089823-7.1-2002
Properties: White granular crystal, relative density is 1.619, melting point is 155 degree centigrade, soluble in water easily, insoluble in alcohol, turn into Monoammonium Phosphate by losing ammonium gradually when exposed in the air, pH value of 1% solution is 8.0
1. Industrial grade:
(1) Main content: 99.0% min. (2) P2O5: 53.0% min. (3) Nitrogen, as N: 20.8% min. (4) pH of 1% water solution: 7.8-8.2 (5) Water insoluble: 0.10% max. (6) Moisture: 0.15% max.
2. Food grade:
(1) Main content: 99.0% min. (2) P2O5: 53.0% min. (3) Nitrogen, as N: 20.8% min. (4) pH of 1% water solution: 7.8-8.2 (5) Water insoluble: 0.05% max. (6) Arsenic, as As: 0.0003% max. (7) Fluoride, as F: 0.002% max. (8) Heavy metal, as Pb: 0.001% max. (9) Moisture: 0.15% max.
Application: As a fire-prevention agent for fabric, timber and paper. For food grade , it is mainly used as a fermentation agent, nourishment, and so on. Used as a high effective non-chloride N, P compound fertilizer in agriculture. It contains totally 74% fertilizer elements (N+P2O5) , used as a basic raw material for N, P and K compound fertilizer.
Packaging: Plastic-woven sack with polythene inner bag, net weight: 25kg, 50kg or 1000kg. Stored in ventilated and dry place.