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Tech grade:
1) Total phosphate: 98% min
2) Inactive phosphate: 7.5% min
3) Iron (Fe): 0.05% max
4) PH value: 5.8-6.5
5) Solubility: pass
6) Heavy metals (as Pb): 0.001% max
7) Polymerization: 9-21
Food grade:
1) Total phosphate: 98% min
2) Inactive phosphate: 7.5% min
3) Iron (Fe): 0.05% max
4) PH value: 5.8-6.5
5) Solubility: pass
6) Heavy metals (as Pb): 0.001% max
7) Arsenic (As): 0.0003% max
8) Fluoride (F): 0.003
9) Water insoluble matter: 0.05% max
10) Polymerization: 9-21
