Sodium Hexametaphosphate
Chemical formula: (NaPO3)6
Molecular weight: 611.82
Standard executed: HG/T2837-1997
Properties:
White powder; Density 2.484(20); soluble in water but insoluble in organic solvent; It has got strong hygroscopicity and can absorb humidity from the air to become into pasty form; It may form soluble chelates with ions of Ca, Ba, Mg, Cu, Fe etc. and is a good water treatment chemical.
Application:
Used in industries of oil fields, paper production, textile, dyeing, petroleum, chemistry, metallurgy and construction materials etc. as water softener, flotation selecting agent, disperser and high temperature adhesive; In food industry it used as an additive, nourishing agent, quality improver, pH regulator, metal ions chelating agent, adhesive and leavening agent etc.
Product standard:
NO. |
Specifications |
Industrial Grade |
Food Grade |
1 |
Total Phosphates (as P2O5 )% ≥ |
68 |
68 |
2 |
Inactive Phosphates (as P2O5 )% ≤ |
7.5 |
7.5 |
3 |
Iron (Fe) % ≤ |
0.05 |
0.05 |
4 |
PH Value |
5.8-7.3 |
5.8-6.5 |
5 |
Solubility |
pass |
pass |
6 |
Heavy Metals % ≤ |
/ |
0.001 |
7 |
Arsenic (As)% ≤ |
/ |
0.0003 |
8 |
Fluoride (as F) % ≤ |
/ |
0.03 |
9 |
Water Insoluble matter % ≤ |
0.05 |
0..05 |
10 |
Polymerization |
10-16 |
9-21 |
|
|
