Sodium Hexametaphosphate ( SHMP ) 68%
items |
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 |