SHMP
Full name: sodium hexametaphosphate(Sodium Polyphosphates, Glassy; Sodium Tetrapolyphosphate; Graham’s Salt, Calgon)
Character: white powder
CAS No.: 10124-56-8
MF:(NaPO3)6
Specification:
|
No. |
Specifications |
Industrial Grade |
Food Grade |
|
1 |
Total phosphate, as P2O5%≥ |
68.0 |
68.0 |
|
2 |
Inactive phosphate, as P2O5%≤ |
7.5 |
7.5 |
|
3 |
Iron, as Fe %≤ |
0.05 |
0.05 |
|
4 |
Ph value (1% solution) %≤ |
5.8-7.3 |
5.8-6.5 |
|
5 |
Solubility |
Qualified |
Qualified |
|
6 |
Heavy metals, as Pb %≤ |
|
0.001 |
|
7 |
Arsenic, as As%≤ |
|
0.0003 |
|
8 |
Fluoride as F%≤ |
|
0.003 |
|
9 |
Water insoluble %≤ |
0.05 |
0.06 |
Properties: White powder, density is 2.484 (20℃), easily soluble in water, but not in organic solution, absorbent to dampness, and turn sticky when absorbed dampness in air. It is possible to form solvent compound with metallic ions such as Ca, Ba, Mg, Cu and Fe; it is a fine agent for water treatment.
Usage: food additives, water treatment and metal face-coating
Packaging:Plastic-woven sack with inner polythene film; net weight at 25kg, 50kg or 1,000kg. Store at a well ventilated, dry place