Ascorbic acid is white to light yellow crystals or powder. It is water-soluble. As food additives, ascorbic acid is mainly used as antioxidant.
Specification:
Test Item | Unit | The Standard |
Appearance | White or almost white crystals crystalline powder | |
Assay | % | 99.0-100.5 |
Melting Point | ºC | About 190 |
PH | 2.1~2.6 | |
Clarity of Solution | Clear | |
Colour of Solution | BY 7 Max. | |
Copper | ppm | 5 Max. |
Heavy Metals | ppm | 10 Max. |
Mercury | ppm | <0.1 |
Lead | ppm | <2 |
Arsenic | ppm | 3 Max. |
Cadmium(CD) | PPM | <1 |
Oxalic Acid | % | 0.2 Max. |
Iron | ppm | 2 Max. |
Loss of drying | % | 0.4 Max. |
Residue on Ignition | % | 0.1 Max. |
Specific Optical Rotation | +20.5°~+21.5° |
Package: 25kg carton or as customer's request.
Storage: Please keep in shade, under seal, dry and ventilation area.