Sodium Hexametaphosphate
Chemical formula : (NaPO3)6
Molecular weight: 611.82
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.
Uses:
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.
Specification :
NO . | specifications | IndustrialGrade | FoodGrade |
1 | Appearance | white powder | |
2 | Total phosphates (as P2O5 )% ≥ | 68 | 68 |
3 | Inactive Phosphates (as P2O5 )%≤ | 7.5 | 7.5 |
4 | Iron (Fe) % ≤ | 0.05 | 0.05 |
5 | PH Value | 5.8-7.3 | 5.8-6.5 |
6 | Solubility | pass | pass |
7 | Heavy Metals (as Pb) % ≤ |
| 0.001 |
8 | Arsenic (As)% ≤ |
| 0.0003 |
9 | Fluoride (as F) % ≤ |
| 0.003 |
10 | Water Insoluble matter % ≤ | 0.05 | 0.05 |
11 | Polymerization | 9-21 | 9-21 |
Sodium Hexametaphosphate 68%