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Ascorbic Acid

Ascorbic Acid （vitamin C）is a white or slightly yellow crystals or powder,a little acid.m.p.190℃-192℃，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.

Specific applications in food

1 Prevent oxidative browning

Oxidative browning often occurs in process and storage of fruit and vegetable, which we do not want happen from the view of economic point. Therefore, Ascorbic Acid is widely used to prevent oxidative browning of the fruit and vegetable products as an effective phenolic inhibitors.

2 Change the flavor of food

The special flavor of food often bastardizes in the process. For example, the change of the special flavor will be prevented with added in 0.005% -0.02% of Ascorbic Acid in the storage of juice. Ascorbic Acid also can improve the special flavor of beer and wine.

3 Prevent the corrosion of tank skin

As a water-soluble antioxidant, Ascorbic Acid can prevent corrosion from tin plated steel sheet of the container inner wall.

4 Prevent lipid oxidation

Ascorbic Acid has a strong reduction and it can be used as antioxidant synergist to prevent rancidity of fats in greasy food.

Sidley chem is one of the most famous Ascorbic Acid suppliers in China. If you buy Ascorbic Acid or inquiry Ascorbic Acid price, please e-mail us through: Sales@visitchem.com to contact us.

———specification———————————————————————————————————–—

Ascorbic Acid
E No:	E300
Einecs No:	200-066-2
CAS No.	50-81-7
HS Code:	29362700
ITEM	STANDARD
Appearance	White or almost white crystal or crystalline powder
Identification	Positive
Melting point	191 ℃ ~ 192℃
pH (5%, w/v)	2.2 ~ 2.5
pH (2%,w/v)	2.4 ~ 2.8
Specific optical rotation	+20.5° ~ +21.5°
Clarity of solution妹妹恋人妹妹恋人 ,变装小说变装小说 ,web幻想私服 web幻想私服	Clear
Heavy metals	≤0.0003%
Assay (as C 6H 8O6, %)	99.0 ~ 100.5
Copper	≤3 mg/kg
Iron	≤2 mg/kg
Mercury	≤1 mg/kg
Arsenic	≤2 mg/kg
Lead	≤2 mg/kg
Oxalic acid	≤0.2%
Loss on drying	≤0.1%
Sulphated ash妹妹恋人妹妹恋人 ,变装小说变装小说 ,web幻想私服 web幻想私服	≤ 0.1%
Residual solvents (as methanol)	≤ 500 mg/kg
Total plate count (cfu/g)	≤ 1000
Yeasts & molds (cfu/g)	≤ 100
Escherichia. Coli/g	Absence
Salmonella/ 25g	Absence
Staphylococcus aureus/ 25g	Absence