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L-ASCORBIC ACID Extra Pure

L-Threoascorbic acid, Antiscorbutic factor, Vitamin C

COAs

Packings

100 g (00100)

500 g (00500)

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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

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%
Revision Date: 09-Aug-2022

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