Industrial grade Sodium hexametaphosphate can be used as water softener of boiler and printing and dyeing industry; Dispersant of papermaking, high temp. Adhesive, washing and soil analytic reagent.
Sodium Hexametaphosphate(SHMP)
Chemical formula: (NaPO3)6
Molecular weight: 611.17
Properties: White powder crystal, Sg 2.484(20o C), Melting point 616o C(decompound), good Moisture absorption It is a good water softener.
Technical index
NO. Index name Industrial grade Food grade
1 Total phosphate %= 68.0 68.0
2 Non-labile phosphorus(P2O5) %= 7.5 7.5
3 Water insoluble matter %= 0.05 0.06
4 Fe %= 0.05 0.05
5 PH value of 1% solution 5.8-7.3 5.8-6.5
6 As %= ___ 0.0003
7 Heavy metals (as Pb) %= ___ 0.001
8 Fluoride(as F) %= ___ 0.003
Uses:
Food grade Sodium hexametaphosphate can be
used as food additive, quality improver, regulator,
metal ion chelating agent, adhesive, and nourishment
additive.