Ascorbic Acid/Vitamin C

Product Name: Vitamin C (Ascorbic Acid) Type: Food/Feed Additives CAS No.: 50-81-7 AUCO No.: 231 Packing: 25kg carton Items Standard Characteristics White or almost White crystals Crystalline Powder Identification Positive Reaction Melting point About 190℃ PH(5% water in solution) 2.1-2.6 PH(2% water in solution) 2.4-2.8 Clarity of Solution Clear Colour of Solution BY7 max Copper 5ppm max Heavy Metals 10ppm max Mercury 0.1mg/kg max Lead 2 mg/kg max Iron 2ppm max Arsenic 3ppm max Cadmium(Cd) ＜1mg/kg Oxalic Acid 0.2% max Impurity E 0.2% max Loss on Drying 0.4% max Sulphate Ash(Residue On Ignition) 0.1% max Specific Optical Rotation 20.5 °~ 21.5 ° Residual Solvents Pass Assay 99.0%- 100.5%