L-Ascorbic Acid, Free Acid; Vitamin C; L-(+)-Ascorbic acid; VC; Ascorbic acid; Vita C BP2005; Vitamine C;

Description & Application Ascorbic Acid (Vitamin C) is while monoclinic system crystal or crystalline powder, odorless but tastes sour. Color turns light yellow after long time storage. It is easily soluble in water, slightly soluble in ethanol, insoluble in chloroform and ether and its water solutions appears acidic. The pH value of the 5% water solution is 2.1-2.6 and the ratio rotation of the 10% (W/V) water solution is +20.5 -+21.5. Ascorbic acid takes part in many metabolism procedures in the human body, helps decrease brittleness of blood capillaries and increase body resistance. In addition to prevention of scurvy, it is often used as a supplement for treatment of acute or chronic infection diseases or purpura. It's widely used in many fields such as food, beverage, breeding and forage additives as well as pharmaceutical industries.

Technical Specification Indemnification Positive reaction Appearance While crystalline Purity, % 99.0-100.5 Loss on dry, % 0.4Max Residue on ignition, % 0.1Max Melting point 190 min ° C pH 2.1~2.6 Color of solution 0.03 (420mm) Max Clarity of solution Clear Arsenic (as As), 3ppm Max Heavy metals 10ppm Max Copper 5ppm Max Iron 2ppm Max Lead 2mg/kg Max Cadium 1mg/kg Max Oxalic acid, % 0.2 Max Specific optical rotation +20.5° ~+21.5° Organic volatile impurities Pass StorageAscorbic acid is slightly hygroscopic and should be stored under conditions of low temperature and low humidity.