L-Ascorbic Acid (BP2002/USP26)

详情

Vitamin C (VC), also known as Ascorbic Acid, is a vitamin that human body can not produce on its own. It plays, however, an important role in the metabolism of human body and physiological function regulation and is one of the essential nutrients for the living of humans. Vitamin C is also the essential nutrient for animals and used as animal additive. It can promote the growing and breeding of animals, increase the meat and milk output and develop the animals' immunity from disease. Specifications: 1) Assay: *9.0% - **0.5% 2) Identification: positive 3) Melting point: about **0.7 - **0.8°C 4) Clarity of solution: clear 5) Color of solution: BY7 max 6) PH value: 2.*- 2.6 (in 2% solution) 7) Oxalic acid: 0.2% max 8) Heavy metals: 5ppm max 9) Ferrite: 2ppm max *0) Arsenic: 3ppm max *1) Hg: 1ppm max *2) Lead: 5ppm max *3) Sulphate ash: 0.1% max *4) Copper salt: 5ppm max *5) Specific rotation: **0.5 ~ **1.5° *6) Organic volatile impurities: meets the requirements *7) Particle size: **0% pass thru *0 mesh; *0% pass thru *0 mesh *8) Appearance white crystalline powder *9) Storage: store in a cool and dry place *0) Shelf life: three years in dry conditions after production *1) Storage: store in a cool and dry place *2) Shelf life: three years in dry conditions after production Packing: *5kg/carton box with PE liner