85% Food grade phosphoric acid 1.Min order: 10 tons 2.Payment: T/T or L/C. ... 050.0005Fluorideas( F) % ≤ 0.001Oxidableas H3PO3 % ≤ 0.0123. UseageIndustrial grade phosphoric acid is mainly processed to be phosphate of lime, sodium,ammonia ... electroplating, antiseptics, decontaminant and catalyst in different grade; Food grade phosphoric acid is mainly used to produce series phosphate food additive, and ...