Chemical formula: Na3PO4·12H2O
Molecular weight: 380.14
Standard executed: HG/T2517-93
Properties: White or colorless crystals, efflorescent in air, easily soluble in water but not in organic solution. Its water solution is alkaline. pH value of 1% solution is 12.1, relative density at 1.62, melting point is 73.4℃.
Technical Specifications:
|
No
|
Specifications
|
Food grade Superior Grade
|
|
1
|
Main content %≥
|
98.0
|
|
2
|
P2O5 %≥
|
18.3
|
|
3
|
Chloride, as Cl %≤
|
0.3
|
|
4
|
Sodium oxide, as Na2O %
|
15.5-19.0
|
|
5
|
Sulfate, as SO4 %≤
|
0.5
|
|
6
|
Heavy metal, as Pb %≤
|
0.001
|
|
7
|
Arsenic, as As %≤
|
0.0003
|
|
8
|
Fluoride, as F %≤
|
0.002
|
|
9
|
Water insoluble %≤
|
0.05
|
Application: Used as water softening agent, cleaning agent in electroplating, color fixer in fabric dyeing and flux in enamel ware manufacturing and so on.
Packaging: Plastic-woven sack with polythene inner bag; Net weight: 25kg, 50kg or 1000kg. Stored in ventilated and dry place.
