Usage:Phosphoric aicd food grade Can be used directly in liquid, solid drinks as sour food additive, Substitute for citric acid, malic acid in beer saccharification process can replace the lactic acid to adjust the PH £¦#118alue£» in the sugar cane industry for clarification agent,as nutrients agent in the yeast production,it also widely used in high-precision electronics industry, pharmaceutical industries. Phosphoric acid technical grade can be used to produce variety of phosphate£¬refractory clay and rust-proof coating£» phosphating-process and polish for metal surface,also can be used as a catalyst, inorganic binder, desiccant, cleaning agent. Standard Item Unit Specification Food grade Tech grade Color£º Apha -- 20 max Main content as H3PO4: % 75-85 min Arsenic as As: PPM 0.5 max 1 max Heavy metal as Pb: PPM 5 max 10 max Fluoride as F: PPM 10 max 11 Oxide as H3PO3: PPM 120 max -- Chloride as Cl: PPM -- 5 max Sulphate as SO4: PPM -- 50 max Iron as Fe: PPM -- 20 max. in 35kg drums.