Chemical formula: (NH4)2HPO4
Molecular weight: 132.06
Standard executed: Q/7089476401-1998
Properties: White granular crystal and relative density is 1.619, melting point is 155° C, easy to dissolve in water and not dissolve in alcohol, pH value of 1% water solution is 8.0. It will lose gradually ammonia to become ammonium dibasic phosphate.
Applications: Mainly used for the fire retardant of wood, paper and textile, and for fireproofing dope additive.
Package and storage: Plastic-woven sack with polythene inner bag, net weight per bag is 25kg, 50kg and 100kg. Keep in dry and windy conditions.
|No.||Specifications||Industrial Grade||Food Grade|
|1||Main content% ≥||99.0||99.0|
|2||Phosphorus pentoxide% ≥||53.0||53.0|
|3||Nitrogen, as N % ≥||20.8||20.8|
|4||PH value of 1% solution||7.6-8.2||7.6-8.2|
|5||Moisture % ≤||0.2||0.2|
|6||Heavy metals, as Pb %≤|| ||0.001|
|7||Arsenic, as As% ≤|| ||0.0003|
|8||Fluoride as F% ≤|| ||0.001|
|9||Water insoluble % ≤||0.10||0.10|