Coated Ascorbic Acid(Vitamin C) 97%-USP/BP Standard

1.CAS No.:50-81-7 2.MW:176.13 3.APPROVED BY KOSHER 4.APPROVED BY HALAL 5.APPROVED BY CCIC

CAS No.:  50-81-7

Molecular Formula: C6H8O6                              

Molecular Weight: 176.13

Structural Formula:

 

Characteristics :white monoclinic system crystals or crystalline powder.

Application:

The melting point of Vitamin C is 190-192ºC, the Alpha is 20.5 º (c=10,H2O) and the water solubility is 333 g/L (20 ºC).

Vitamin C behaves as a vinylogous carboxylic acid where the electrons in the double bond (vinyl), hydroxyl group lone pair and the carbonyl double bond form a conjugated system. Because the two major resonance structures stabilize the deprotonated conjugate base of Vitamin C, the hydroxyl group in Vitamin C is much more acidic than typical hydroxyl groups. In other words, Vitamin C can be considered an enol where the deprotonated form is an enolate, which is usually strongly basic.

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. 4.Compensate the Vitamin C losses of beverage ,fruits and vegetablesduring processing procedures. 5.Used as nutritional element in additives. Feed additives.

Specification: 

Item	Index
Characteristics	White crystalline powder
Identification	Positive reaction
Melting Point	About 190°C
PH	2.1-2.6
Clarity Of Solution	Clear
Mercury	≤0.1ppm
Zinc	≤25ppm
Arsenic	≤3ppm
Lead	≤2ppm
Loss on Drying	≤0.1%
Colour of Solution	≤BY7
Copper	≤5ppm
Heavy Metals	≤10ppm
Iron	≤2ppm
Oxalic Acid	≤0.2 %
Sulphate Ash (Residue On Ignition)	≤0.1%
Specific Optical Rotation	+20.5°- +21.5°
Assay	99.0-100.5%
Organic Volatile Impurities	Pass

Usage:

Vitamin C takes part in a variety of metabolic processes in human body and helps in inducing the fragility of capillary vessel, and improving the resistibility to illness.

Packing and Storage:

Vitamin C is packed in 25KG net weight carton lined with PE bags(marks can be designed by customers).

Store Vitamin C in cool, dry and well closed place. The shelf life of Vitamin C is 2 years in original packages under the described conditions.

Keyword:

Vitamin C; L-Threo-2,3,4,5,6-Pentahydroxy-1-Hexenoic Acid-4-Lactone

Coated Ascorbic Acid(Vitamin C) 97%-USP/BP Standard