Chemical formula: Na2HPO4·12H2O
Molecular weight: 358.14
Standard executed: GB6008-85
Properties: White or colorless crystal, efflorescent in air, easily soluble in water, but insoluble in alcohol, its water solution is slightly alkaline, relative density is 1.63, melting point is 34.6℃
Technical Specifications:
|
No
|
Specification
|
Industrial grade
|
|
1
|
Main content %≥
|
97.0
|
|
2
|
P2O5 %≥
|
19.2
|
|
3
|
pH of 1%watersolution
|
8.8-9.2
|
|
4
|
Chloride, as Cl %≤
|
0.05
|
|
5
|
Sulfate, as SO4 %≤
|
0.7
|
|
6
|
Fluoride, as F %≤
|
0.05
|
|
7
|
Heavy metal, as Pb %≤
|
-
|
|
8
|
Arsenic, as As %≤
|
0.005
|
|
9
|
Water insoluble %≤
|
0.10
|
Applications: Used as a fire-prevention agent for fabric, timber, and paper, also as water softening agent for boiler, food additive, buffering agent, solder, tanning agent, and etc.
Packaging: Plastic-woven sack with polythene inner bag. Net weight: 25kg, 50kg or 1000kg. Stored in ventilated and dry place.
