L-ASCORBIC ACID AR/For Biochemistry

(Confirms to IP,USP)
L-Threoascorbic acid, Antiscorbutic factor, Vitamin C

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Article No.
01550
Grade
AR/For Biochemistry
Purity
99.5%
CAS No.
50-81-7
Molecular Formula
C6H8O6
Molecular Weight
176.12
H.S. Code
2936.2700
Shelf Life
36 Months
MSDS
 

 

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

Packings

  • 1PW1200100

    100 g (00100)

  • 1PW1200500

    500 g (00500)

 

Specifications

Appearance A white to very pale yellow crystalline powder or colourless crystals; odourless. On exposure to light it gradually darkens.
Assay 99.5-100.5%
Identity (IR) To confirm the structure
Identification (as per USP, IP) To comply the tests
Appearance of solution To comply IP test
Specific optical rotation ([α]20/D; 10% solution) +20.5° to +21.5°
Light absorption Absorbance at about 244 nm is about 0.56
Oxalic acid Max 0.3%
Loss on drying Max 0.1%
Sulphated ash Max 0.1%
Chloride (Cl) Max 0.01%
Sulphate (SO4) Max 0.002%
Copper (Cu) Max 0.0005%
Heavy metal (as Pb) Max 0.001%
Iron (Fe) Max 0.0002%
Lead (Pb) Max 0.001%

Revision Date : 23-Sep-2020
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