Phosphoric Acid 1.Phosphoric acid food grade ***** grade ***** grade ***** no.: 7664-38-2 *****:85% min&75% min Phosphoric acid food grade Molecular Formula : H 3 PO 4 Molecular Weight : 97.99 Item Value Industry Grade Food Grade 85% 75% Excellent Grade 1 Grade 2 Excellent Grade 1 Grade 2 Colority ≤ 20 30 40 20 30 40 20 Content (H 3 P O 4 ), % ≥ 85.0 85.0 85.0 75.0 75.0 75.0 75.0~86.0% Chloride(Cl ) , % ≤ 0.0005 0.0005 0.001 0.0005 0.0005 0.001 Sulphates( SO 4 ), % ≤ 0.003 0.005 0.01 0.003 0.005 0.01 Iron(Fe), % ≤ 0.002 0.002 0.005 0.002 0.002 0.005 Arsenic (As) , % ≤ 0.0001 0.005 0.01 0.0001 0.005 0.01 0.00005 Arsenic (Pb), % ≤ 0.001 0.001 0.05 0.001 0.001 0.05 0.0005 Heavy metals ( F), % ≤ 0.0010 Easily oxidated matter( H 3 PO 3 ), % ≤ 0.012 Usage : Used as cleaner for printed circuit , acidic flavoring for food, nutriment for yeast, also for use of producing different phosphates if you are interested to buy Phosphoric Acid so please feel free and send inquiry to us for more details.