Vitamin C Ascorbic Acid Powder

Vitamin C, also known as vitamin C, is a polyhydroxy compound with the chemical formula C6H8O6.

2. Vitamin C SOA

Thing	Standard
view	White or almost white crystalline powder or colorless crystals
Melting temperature	About 190degree. with decomposition
Infrared absorption spectrum	The infrared absorption spectrum corresponds to the reference CRS spectrum of ascorbic acid.
PH (with 5-percent aqueous solution)	2.1~2.6
PH (with 2-percent aqueous solution)	2.4~2.8
Appearance of the solution	Clarity; Purely; color:Less or equalBY₇
Specific optical rotation	﹢20.5degree~﹢21.5degree
Damage due to drying out	Less or equal0.4 percent
Impurity E	Less or equal0.2 percent
Related substance	Impurity C:Less or equal0,15%
	Impurity D:Less or equal0,15%
	Unidentified impurities:Less or equal0.10 percent
	Total impurities:Less or equal0.20 percent
Copper	Less or equal5.0ppm
Iron	Less or equal2.0ppm
Arisensky	Less or equal3.0ppm
News	Less or equal2.0ppm
Mercury	Less or equal1.0ppm
Cadmium	Less or equal1.0ppm
Heavy metals	Less or equal10 ppm
Sulfated ash	Less or equal0.1 percent
analysis	99.0 percent ~ 100.5 percent