L-Ascorbic Acid 99% Extrapure
L-Threoascorbic acid, Antiscorbutic factor, Vitamin C
Product Code. |
00307 |
Grade |
|
Purity |
99% |
CAS No. |
50-81-7 |
Molecular Formula |
C6H8O6 |
Molecular Weight |
176.12 |
H.S.Code |
2936.27000 |
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 |
Packaging
Specification
| 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% |
Safety Information and Hazard Symbols