Product Main

Specifications

Chemical formula: Na2HPO4·12H2O
Molecular weight: 358.14
CAS NO.: 7558-79-4
Ref. Standard: HG/T2965-1997(Industrial grade); HG2920-2000(Food grade)
production capacity:5000 t/a
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.
Index
Industrial Grade
Food grade
1
Main content  %≥
98.0
98.0
2
P2O5   %≥
19.2
19.4
3
pH of 1% water solution
8.8-9.2
9.0-9.4
4
Chloride, as Cl % ≤
0.05
0.014
5
Sulfate, as SO4  % ≤
0.7
0.25
6
Heavy metal, as Pb % ≤
-
0.001
7
Arsenic, as As % ≤
0.005
0.0003
8
Fluoride, as F % ≤
0.05
0.002
9
Water insoluble % ≤
0.10
0.05
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: packed in plastic woven bag with PE lining, 25kgs/bag. Stored in ventilated and dry place.