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Pemasok yang Diaudit DL-Mandelic acid for dye Intermediate Cas 611-72-3
| DL-Mandelic acid Basic information | |
| Product Name: | DL-Mandelic acid |
| CAS: | 611-72-3 |
| MF: | C8H8O3 |
| MW: | 152.15 |
| EINECS: | 202-007-6 |
| DL-Mandelic acid Chemical Properties | |
| Melting point | 119-121 °C(lit.) |
| Boiling point | 234.6°C (rough estimate) |
| density | 1.289 |
| refractive index | 1.4945 (estimate) |
| pka | 3.85(at 25ºC) |
| Water Solubility | 172.5g/L(24 ºC) |
| CAS DataBase Reference | 611-72-3(CAS DataBase Reference) |
| Item | Specifications | Results |
| Appearance | White crystal | White crystal |
| Solubility | Soluble in water and ether | Soluble in water and ether |
| Cyanide | Should be absent | No detected |
| Assay (Benzene) | 50 ppm max | No detected |
| Assay (on dry basis) | 99% min | 99.86% |
| Melting point | 117ºC~121ºC | 118.6ºC~119.2ºC |
| [a]D20 | ±0.25° | 0° |
| Transmittance | Not less than 90% | 97.10% |
| (10% w/v water) | ||
| Residue on ignition | 0.5% max | 0.02% |
| Turbidity | <20NTU | 11.31NTU |
| Moisture | 0.5% max | 0.07% |
| Conclusion | The results conforms with enterprise standards | |
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