Chemical formula: Na3HPO4. nH2O (n=0,12)
Molecular weight: 380.14
Standard executed: HG/T2517-93
CAS Number: 7758-79-4
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 1.62g/cm3, melting point is 73.4 ℃.
Application:
Used as a water softening agent, cleaning agent in electroplating, color fixer in fabric dyeing and flux in enamel ware manufacturing and so on.
Guaranteed Technical Specifications :
No. |
Specifications |
Na3PO4
(Anhydrous) |
Na3PO4 .12H2O
(Duohydrate) |
Industrial |
Food |
Industrial |
Food |
1 |
appearance |
white powder |
white or colorless crystal power |
2 |
Main contents% ≥ |
98.0 |
98.0 |
98.0 |
98.0 |
3 |
Phosphorus pentoxide(P2O5)%≥ |
39.5 |
39.5 |
18.3 |
18.3 |
4 |
Sodium oxide, as Na2O |
36-40 |
36-40 |
15.5-19 |
15.5-19 |
5 |
Sulfate, as SO4 % ≤ |
|
0.25 |
0.5 |
0.5 |
6 |
Heavy metal, as Pb% ≤ |
|
0.001 |
|
0.001 |
7 |
Arsenic, as As% ≤ |
|
0.0003 |
|
0.0003 |
8 |
Fluoride as F% ≤ |
|
0.005 |
|
0.005 |
9 |
Water insoluble% ≤ |
0.10 |
0.10 |
0.10 |
0.10 |
|
