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L-ASCORBIC ACID AR/For Biochemistry
(Confirms to IP,USP)
| Article No. | Grade | Purity | CAS No. | Molecular Formula | Molecular Weight | H.S. Code | Shelf Life |
|---|---|---|---|---|---|---|---|
| SC4144 | AR/For Biochemistry | 99.50% | 50-81-7 | C6H8O6 | 176.12 | 2936.27 | 36 Months |
Packings
| 100 g,500 g |
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 | 99.5-100.5% |
| 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% |
Safety Information and Hazard Symbols
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Revision Date : 23-Sep-2020
Certificate of Analysis (COA's)
To download COA please enter the batch number below