L-ASCORBIC ACID Extra Pure

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Category: Vitamins

Description
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Description

L-Threoascorbic acid, Antiscorbutic factor, Vitamin C

Article No.	01549	Grade	Extra Pure
Purity	99%	CAS No.	50-81-7
Molecular Formula	C₆H₈O₆	Molecular Weight	176.12
H.S. Code	2936.2700	Shelf Life	36 Months

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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

Specifications

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

Packings

100 g	00100
500 g	00500

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