Phosphoric acid 85% food grade,Meet GB3149-04,FCC StandardAppearance Transparent colorless sticky liquid Colority 20 max. Assay as H3PO4 85% min Chloride as Cl 5 ppm max Sulphate as SO4 50 ppm max Heavy metals as Pb 5 ppm max. Reductive matter as H3PO3 0.012% max. Arsenic as As 0.5 ppm max. Iron as Fe 10 ppm max. Fluoride as F 10 ppm max.