L-ASCORBIC ACID LR

Article No.	Grade	Purity	Cas no.	Molecular Formula	Molecular Weight	H.S. Code	Shelf Life
A0029500500	LR	99%	50-81-7	C₆H₈O₆	176.12	2936.2700	60 Months

Physical Properties

Physical state at 20 °C

Solid

Colour

White crystalline

Odour

Odorless

pH value

1 - 2.5

Melting Point/ Freezing point [°C]

190 - 194 °C

Density [g/cm3]

1.65

Solubility in water [% weight]

176 g/l at 20 °C - completely soluble

Appearance:	A white to very pale yellow crystalline powder or colourless crystals; odourless. On exposure to light it gradually darkens.
Heavy metal (as Pb):	Max. 0.002%
Iron (Fe):	Max. 0.001%
Assay:	99.0 - 100.5%
Residue on ignition:	Max. 0.1%
Specific rotation [a] 20°C/ D (10% solution):	+20.5° to +21.5°