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Ascorbic acid (Vitamin C)

CAS No.: 50-81-7
EINECS No.: 200-066-2
Properties: It 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.
Usage:
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 rocedures.
5.Used as nutritional element in additives, Feed additives.
Packing: 25kg carton or kraft bag or fiber drum as customer’s request

Specification:

characteristics

White or almost white crystalline powder

identification

Positive reaction

Melting point

About 190C

PH

2.1-2.6

Clarity of solution

clear

copper

5ppm

Heavy metals

10ppm

lead

2ppm

iron

2ppm

arsenic

3ppm

Oxalic acid

0.2%

Loss on drying

0.4%

Sulphate ash (residue on ignition)

0.1%

Specific optical rotation

+20.5+21.5

assay

99.0%100.5%

Storage stability: Qualified