Sodium hexametaphosphate
Properity
1.Molecular Formula:(NaPO3)6
2.Molecular Weight:611.77
3.Appearance:White crystalline,granular,odorless solid.

Specification
Industrial grade                                   Food grade
Total phosphate (P2O5) 68% min        68% min
Inactive phosphate(P2O5) 7.5% max       7.5% max
Iron (Fe) 0.05% max                         0.05% max
PH value(1% solution) 5.8-7.3          5.8-6.5
solubility Qualified                             Qualified
Heavy metals (Pb)                             0.001% max
Arsenic (As)                                     0.0003% max
Fluoride (F)                                        0.003% max
Water insoluble  0.05%max               0.06% max
USES:
1)Industry grade: Used in such industries as oil field, paper-making,
textile, dyeing, petrochemical industry, tanning industry,
metallurgical industry and building material industry,
and used as a water softening agent in solution for printing,
dyeing, and boiler, as diffusant in papermaking; Retarding agent,
floating agent, dispersing medium, high temperature
agglomerant, detergent and soil analytical chemical reagent;
2)Food grade: Mainly used as additive agent, pH adjusting agent,
fermenting agent, and nourishment, etc.