food grade ascorbic acid pure vitamin c

L -Ascorbic Acid is White crystal or crystalline powder which is used for feed, food and pharmaceutical for human. Molecular Formula: C6H8O6 Description: Ascorbic acid/vc is colourless crystals or a white or almost white. Crystalline power which discolours on exposure to air and moisture. Odorless or almost odorless and tasted sour. Easily soluble in water and a few partail soluble in ethanol. Insoluble in ether and chloroform. Application: Vitamin C is widely used in many fields such as food, beverage, breeding and forage additives. Its main functions are reflected in following six aspects: 1.Keep food, fruits and beverage fresh and prevent them from producing unpleasant smell. 2.Prevent formation of nitrous amine from nitrous acid in meat products. 3.Improve dough quality and make baked food expand to its maximum. 4.Compensate the Vitamin C losses of beverage, fruits and vegetables during processing procedures.5.Used as a nutritional element in additive. 6.Feed additives. Storage: 1. Store in cool and dry places; sealed 2.Dangerous reaction with: N.A Transportation: Don't broke it's package or transport together with any poisonous material Explosion and fire risk: Can't cause explosion and fire risk Toxicological: NIL No hurt to your skin Shelf life: The shelf life is 1.5 years after production in sealed original packing. Item Unit Technical ParameterPhysical Characterwhite crystalline powderIdentificationPositive reaction Melting Point190 192Specific Rotatory Degree°+20.5+21.5AciditypH Value2.1 2.6Solution Defecation DegreeDefecationSolution ColorA(420nm)≤0.015Ignition Residue%≤0.1Heavy metalsppm≤5.0Copperppm≤5.0Ironppm≤2.0Oxalic Acid%≤0.3Content%≥99%Pellet Size%40 80meshes