... SpecificationsIndustrial GradeFood Grade1Total phosphate, as P2O5%>=68.068.02Inactive phosphate, as P2O5%<=7.57.53Iron, as Fe %<=0.050.054Ph ... , as Pb %<= 0.0017Arsenic, as As%<= 0.00038Fluoride as F%<= 0.0039Water insoluble %<=0.050.06Uses: Tech Grade used as a water ... temperature agglomerant, detergentand soil Analytical Chemistry Reagent.Food Grade Used as additive agent, ph adjusting agent and ...