Specifications of vitamin C
Appearance : White or almost white crystal crystalline powder
Taste:Sweet
Assay:99.0-100.5%

Specifications of vitamin C

Appearance  : White or almost white crystal crystalline powder

Taste  : Sweet

Assay  :  99.0-100.5%

Identification   : Positive reaction

Melting point  : About 190 °C

PH  : 2.1 – 2.6

Moisture  : Max. 0.4 %

Copper  : Max.5ppm

Heavy metals  : Max. 10 ppm

Mercury  : Max.0.1ppm

Lead  : Max.2ppm

Arsenic  : Max. 3 ppm

Cadmium   : Max.1ppm

Oxalic acid  : Max.0.2%

Iron  : Max.2ppm

Sulphate ash  : Max.0.1%

Specific optical rotation  : +20.5°- +21.5°

Mesh  :40-100 mesh