Ascorbic Acid

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 CAS No.: 50-81-7                                    Molecular Formula:C6H8O6                 

 Einecs Number:200-066-2                Synonyms: Vitamin C


Ascorbic acid 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.

Ascorbic acid, or vitamin C, a water-soluble dietary supplement. Vitamin C is not only an important nutrient but is also used as an antioxidant in various foods. However, it is not soluble in fat and is unstable under basic conditions. The name ascorbic means antiscurvy and denotes the ability of ascorbic to combat this disease.

Vitamin C can prevent scurvy, also known as “ascorbic acid.” Over the years, animal experiments and clinical studies have found that vitamin C can lower blood cholesterol levels, enhance immunity, increase capillary elasticity, promote healing of wounds and surgical incisions, prevent colds, promote growth and development, and prevent chronic metal poisoning such as mercury and lead. To prevent aging, prevent tumors, etc. Therefore, in addition to treatment, there are many people who are consciously taking vitamin C, especially some middle-aged and older people prefer to take it regularly or for a long time.


Vitamin C is widely used in many fields such as food , beverage, breeding and forage additives. Its main functions reflected in following 5 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.
4Compensate the Vitamin C losses of beverage ,fruits and vegetables during processing rocedures.
5)Used as nutritional element in additives,Feed additives.

Package and Storage:

25kg/carton, 20-22mt/20’fcl

Analysis Standard BP2012/USP36/FCCVII/E300
Shelf Life 3 Years
Net/Gross Weight  25.0kgs/26.1kgs
Analysis Contents Analysis Standard Analysis Results
Characteristics White or almost White crystals Crystalline Powder Pass
Identification Positive Reaction Positive
Melting Point About 190℃ 191.2℃
PH 2.1-2.6 2.43
Clarity Of Solution Clear Clear
Colour Of Solution ≤BY7 <BY7
Copper ≤5ppm <5ppm
Heavy Metals ≤10ppm <10ppm
Mercury <0.1mg/kg




Lead <2mg/kg




Arsenic ≤3ppm <3ppm






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° +21.15°
Mesh 40-80 Mesh Pass
Residual Solvents Pass Pass
Assay 99.0%-100.5% 99.92%
Conclusion The Above-Mentioned Product Conforms To


Citric Acid Monohydrate

Citric Acid Anhydrous