Sell STPP ( Sodium Tripoly Phosphate )

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NO SPECIFICATIONS TECH GRADE FOOD GRADE
1 Main content %>= 94.0 95.0
2 P2O5 %>= 57.0 57.0
3 PH of 1% solution 9.2---10.0 9.5---9.9
4 Iron, as Fe %<= 0.015 0.01
5 Water insoluble %<= 0.10 0.10
7 Arsenic as As %<= 0.0003
8 Heavy metals as Pb %<= 0.001
9 Cl %<= 0.5
Packing: Plastic knit bag net weight 25kgs or 50kg.