Vitamin C, also called L-ascorbic acid, is a water-soluble vitamin that can treat scurvy and is acidic, so it is called ascorbic acid, which can assist in the treatment of many diseases. Vitamin C can not only relieve cold symptoms, but also enhance immunity. 

Product Name	Ascorbic Acid (Vitamin C)
Analysis Standard	BP/USP/EP/E300
Analysis Contents	Analysis Standard	Analysis Results
Characteristics	White or almost White crystals Crystalline Powder	Pass
Identification	Positive Reaction	Positive
Melting Point	About 190℃	190.9℃
PH	2.1-2.6	2.43
Clarity Of Solution	Clear	Clear
Colour Of Solution	≤BY7
Copper	≤5ppm	<5ppm
Heavy Metals	≤10ppm	<10ppm
Mercury	<0.1mg/kg	<0.1mg/kg
Lead	<2mg/kg	<2mg/kg
Arsenic	≤3ppm	<3ppm
Cadmium(Cd)	<1mg/kg	<1mg/kg
Oxalic Acid	≤0.2%	<0.2%
Iron	≤2ppm	<2ppm
Loss of Drying	≤0.4%	<0.4%
Sulphate Ash(Residue On Ignition)	≤0.1%	<0.1%
Specific Optical Rotation	+20.5°–+21.5°	+21.20°
Organic Volatile Impurities	Pass	Pass
Assay	99.0%-100.5%	99.82%
Conclusion	The Above-Mentioned Product Conforms To BP/USP/EP/E300

In addition to being used as nutritional supplements and antioxidants, vitamin C is a food antioxidant permitted by China's GB2760-1996 regulations. It is used in juice, canned food, beverages, jams, candy, dairy products, meat products and flour improvers; Used as feed additives, etc.