Ascorbic acid(Vitamin C)(Cas no:50-81-7)

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0 Metric Ton	Negotiable

0 Metric Ton

Negotiable

Min.Order :0 Metric Ton
Purity: 99

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Vitamin C Ascorbic acid 50-81-7

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Character:white monoclinic system crystals or crystalline powder.Metling point 190 . C -192 C, odorless but tastes sour. Color turns light yellow after long time storage. The product is easily soluble in water , slightly soluble in ethanol , insoluble in chloroform and ether and its water solution appears acidic. The PH value of the 5% water solution is 2.1-2.6 and the ratio rotation of the 10% (W/V) water solution is +20.5 . -+21.5 .

Uses:Vitamin C takes part in many metabolism procedures in the human body, helps decrease brittleness of blood capillaries and increase body resistance .In addition to prevention of scurvy ,it is often used as a supplement for treatment of acute or chronic infection diseases or purpura.

Packing:Net weight 25kg cardboard cartons /drums lined with a layer of craft paper and two layers of plastic bags

Certificate of Anallysis

Product	Ascorbic Acid	PACKING	25Kg/PAPER BOX
BATCH NO.	201008001	QUANTITY OF BATCH	3.5t
EXPIRTY	ONE YEAR	TEST NO.	TV-0108002
TEST DATE.	2010.8.26	REPORT DATE	2010.8.26
ACCORDING AS	BP-2009
ITEM	QUALITY STANDARD		RESULT
APPEARANCE	WHITE OR ALMOST WHITE, CRYSTAL OR CRYSTALLINE POWDER.		CONFIRM
CLARITY AND COLOR OF SOLUTION	CLEAR,		CLEAR,
MELTING POINT	190~192 ℃		191.2 ℃
SPECIFIC OPTICAL ROTATION	+20.5~+21.5°		+21.03°
PH(5%,W/V)	2.1-2.6		2.34
IDENTIFICATION	POSITIVE		POSITIVE
RELATED SUBSTANCE	IMPURITY C <0.15%		CONFIRM
	IMPURITY D <0.10%		CONFIRM
	ANY OTHER UNSPECIFIC IMPURITY <0.10%		CONFIRM
	TOTAL IMPURITY <0.20%		CONFIRM
OXALATE	<0.2%		<0.2%
RESIDUE ON IGNITION	≤0.1%		0.03%
IRON	≤2 PPM		<2 PPM
COPPER	≤ 5 PPM		< 5 PPM
HEAVY METAL	≤10 PPM		≤10 PPM
ARSENIC	≤0.0003%		<0.0003%
ASSAY	≥99.0%		99.53%
CONCLUSION	COMPLIED WITH BP2007/USP30 GB 14754-1993