Food Grade Vitamin C Ascorbic Acid CAS NO.50-81-7 Vitamin C Ascorbic Acid

Food Grade Vitamin C Ascorbic Acid CAS NO.50-81-7 Vitamin C Ascorbic Acid

Ascorbic acid is the enolic form of 3-oxo-L- gulofuranolac-tone. It can be prepared by synthesis from glucose, or extracted from plant sources such as rose hips, blackcurrants or citrus fruits. It is easily oxidized in air. It is a white or slightly yellow crystals or powder,a little acid.m.p.190°C-192°C,easily soluble in water,a little soluble in alcohol and uneasily soluble in Ether and chlorofom and other organic solvent.In solid state it is stable in air.Its water solution is easliy mutated when it meets with air.

White powder. Odorless. Exists sourness. Flash point 99 . Melting point 187 ~ 192 . By the illumination was gradually browning, dry state fairly stable in the air, but in the presence of air is rapid deterioration in solution, PH value of 3.4 ~ 4.5 more stable. This product is about 1g soluble in 5ml water and 30ml ethanol. 0.5% aqueous solution PH value of 3,5% aqueous solution PH value of 2. Not soluble in chloroform, ethyl ether, non-volatile oil and benzene. Showed a strong reduction, there has been inhibiting polyphenol oxidase effect, it is added to beer, fruit juice and other foods can be used as antioxidants. This product is widely distributed in plant tissues, fresh fruits and vegetables are more content. Especially parsley, roxburghrose, kiwi fruit, peppers, tomatoes, citrus for more.