00308
L-Ascorbic Acid 99.5% AR For Biochemistry
(Confirms to IP,USP) L-Threoascorbic acid, Antiscorbutic factor, Vitamin C
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 |
Specification
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 ([?]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% |
Safety Information and Hazard Symbols
×
L-Ascorbic Acid 99.5% AR For Biochemistry
| Pack Size | Quantity |
|---|---|
| 2500 ml | 3 |
| 500 ml | 2 |