Vitamin C (Ascorbic Acid) 50-81-7 CAS NO.50-81-7

Product Details

vitamin c coated, coated vitamin c, ascorbic acid coated, coated acorbic acid

specification
cas no:50-81-7
mf:c6h8o6
properties:white to pale yellow poewr

functions and uses :

1, prevention vitamin c deficiency, lead, mercury, arsenic poisoning, such as chronic and medicine

rash, urticaria and methemoglobin disease,

2, to all sorts of acute or chronic infection used as auxiliary treatment drug;

3, can improve the body's immunity, and accelerate wound healing;

4, with anti-stress, anti-inflammatory and antiallergic effects,

5, can strengthen fish reduces mortality and improving palatability, cultured fish survival.

product name	ascorbic acid(vitamin c)
batch no.	201205271
analysis standard:	bp2010/usp32
manu.date	may.2012
shelf life	3 years
net/gross weight	25.0kgs/26.5kgs
contents		standard	results
characteristics		white or almost white crystals crystalline powder	pass
identification		positive reaction	positive
melting point		about 190°c	191.1°c
ph		2.1-2.6	2.46
clarity of solution		clear	clear
colour of solution		≤by7	7
copper		≤5ppm	5ppm
heavy metals		≤10ppm	<10ppm
mercury		<0.1mg/kg	<0.1mg/kg
lead		<2mg/kg	<2mg/kg
arsenic		≤3ppm	<3ppm
cadmium(cd)		<1mg/kg	<1mg/kg
oxalic acid		≤0.2%	<0.2%
iron		≤2ppm	<2ppm
loss of drying		≤0.4%	0.03%
sulphate ash(residue on ignition)		≤0.1%	<0.1%
specific optical rotation		+20.5°–+21.5°	+21.15°
organic volatile impurities		pass	pass
assay		99.0%-100.5%	99.81%
residual solvents		methanol:≤3000 ppm	<100ppm
total plate count		≤1000 cfu/g	<10 cfu/g
yeasts& molds		≤100 cfu/g	<10 cfu/g
escherichia coli		negative in 1g	absence in 1g
conclusion		the above-mentioned product conforms to bp2010/usp32