Specification:Vitamin C, also known as ascorbic acid, is an acidic polyol containing six carbon atoms.White crystal or crystalline powder, odorless, Sour. Flash point 99. Melting point 187 ~ 192. Browned gradually by light. Dry conditions remained stable in the air, but in solution rapidly degenerate when in the presence of air. It is stable when PH value of 3.4 ~ 4.5.Packing: 25kg/ boxFunction: Disease-prevention: reduce the incidence of cancer Vitamin C is an antioxidant that can help plants resist drought, ozone and ultraviolet light.Application: Vitamin C, also known as ascorbic acid, is a widely used health care products, pharmaceuticals, cosmetics, food additives and nutrients. Mainly used for health care products and food additives.