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SULPHANILAMIDE AR Confirming to Reag. Ph.Eur. p-Aminobenzenesulfonamide
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Description
| Article No. | 06175 | Grade | AR |
| Purity | 99% | CAS No. | 63-74-1 |
| Molecular Formula | C6H8N2O2S | Molecular Weight | 172.20 |
| H.S. Code | 2935.9090 | Shelf Life | 60 Months |
Physical Properties
| Physical state at 20 °C | Solid | Colour | White powder | ||||
| Odour | Odorless | pH value | 5.8 – 6.1 (0.5% aq.sol.) | ||||
| Melting point/ Freezing point [°C] | 164 – 166 °C | Density [g/cm3] | 1.08 | ||||
| Solubility in water [% weight] | 7.5 g/L @ (20°C) | ||||||
Specifications
| Appearance | White or yellowish-white crystals or fine powder | Solubility | slightly soluble in water, freely soluble in acetone, sparingly soluble in ethanol (96 per cent), practically insoluble in methylene chloride. It dissolves in solutions of alkali hydroxides and in dilute mineral acids |
| Assay (on dried basis) | 99.0 -101.0% | Identification | – |
| Melting point | 164.5 °C to 166.0 °C | Infrared spectrum | Conforms to structure |
| Identification ‘C’ | The principal spot in the chromatogram obtained with test solution (a) is similar in position and size to the principal spot in the chromatogram obtained with reference solution (a). | Identification ‘D’ | ssolve about 5 mg in 10 mL of 1 M hydrochloric acid. Dilute 1 mL of the solution to 10 mL with water R. The solution, without further acidification, gives the reaction of primary aromatic amines |
| Acidity | Not more than 0.2 mL of 0.1 M sodium hydroxide is required to change the colour of the indicator | Related Substances ( by TLC) | Max 0.5% |
| Sulphate (SO4) | Max 0.02% | Chloride (Cl) | Max 0.01% |
| Heavy metal (as Pb) | Max 0.002% | Loss on drying (at 105°C) | Max 0.5% |
| Sulphated ash | Max 0.1% |
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