Molecular formula: Na2HPO4. nH2O (n=0,12)
Molecular weight: 358.0
Standard executed: HG/T2965-2000(Industrial Grade)
HG2920-2000(Food Grade)
CAS Number: 7758-79-4
Properties:
White or colorless crystalline free flowing solid, efflorescent in air, easily soluble in water, but insoluble in alcohol, its water solution is slightly alkaline, relative density at 1.52 g/cm3, melting point at 35℃.
Uses:
Used as a fire-preventio agent for fabric, timber, and paper, also as water softening agent for boiler, food additive, buffering agent, solder, tanning agent, etc.
Guaranteed Technical Specifications:
No. |
Specifications |
Na2HPO4
(Anhydrous) |
Na2HPO4 .12H2O (Duohydrate) |
Industrial Grade |
Food Grade |
Industrial Grade |
Food Grade |
1 |
Main contents %≥ |
98.0 |
98.0 |
97.0 |
97.0 |
2 |
P2O5 %≥ |
49.0 |
49.0 |
19.2 |
19.2 |
3 |
PH of 1% water solution |
8.5-10.0 |
8.5-10.0 |
8.8-9.2 |
8.8-9.2 |
4 |
Chloride,as Cl % ≤ |
|
|
0.05 |
0.014 |
5 |
Sulfate, as SO4 %≤ |
|
|
0.7 |
0.25 |
6 |
Heavy metals, as Pb %≤ |
|
0.001 |
|
0.001 |
7 |
Arsenic, as As %≤ |
|
0.0003 |
0.005 |
0.0003 |
8 |
Fluoride, as F %≤ |
|
0.005 |
0.05 |
0.005 |
9 |
Water insoluble %≤ |
0.10 |
0.10 |
0.05 |
0.05 |
|
