Ascorbic acid

DESCRIPTION	An organic compound with the formula C6H8O6, is one of the main substances in the human diet, which is necessary for the normal functioning of connective and bone tissue. Performs biological functions of a reducing agent and coenzyme of some metabolic processes, is an antioxidant. Biologically active (able to participate in biochemical processes) is only one of the isomers — L-ascorbic acid, also called vitamin C, which is naturally found in many fruits and vegetables. According to its physical properties, ascorbic acid is a white crystalline powder with a sour taste. Easily soluble in water, soluble in alcohol. The melting point of L-ascorbic acid is 190-192 °C (with decomposition). Due to the presence of two asymmetric atoms, there are four diastereomers of ascorbic acid. The two conventionally named L- and D-forms are chiral with respect to the carbon atom in the furan ring, and the iso-form is the D-isomer for the carbon atom in the ethyl side chain.
PACKING:	Box 25 kg
ORIGIN:	Asia
PERIOD OF VALIDITY:	3 years
STORAGE CONDITIONS:	Should be stored in a metal sealed container, in a dry and protected from light place with a humidity level of no more than 70%. The packaging is stored on racks or pallets. Recommended storage temperature: from 5°C to 25°C
PRICE:	BUY

Quality indicators	USP requirements
Appearance	White or almost white crystalline powder or colorless crystals
Content of the main substance, %	99,0-100,5
Solubility	Easily soluble in water, slightly soluble in ethanol, insoluble in chloroform
Melting point, ° C	190
Weight loss during drying, %, no more	0,1
Residue after calcination, %, no more	0,1
pH (5%, WN)	2,1-2,6
Heavy metals, ppm, no more	10
Iron, ppm, no more	2
Copper, ppm, no more	5
Cadmium (ICP-MS), ppm, no more	1
Mercury (ICP-MS), ppm, no more	1
Lead (ICP-MS)	1
Total number of microorganisms, CFU/g, no more	1000
Yeast and mold, CFU/g, no more	100
Arsenic, mg/kg, no more	0,04