Their requirements of Diethyl Ether are in two grades.
1) L.R. Grade
2) A. R. Grade
⇒ L. R. grade material means the material should pass as per IP 1966.
⇒ A. R. grade material has extra high purity..
| Test: | L. R. Grade | A.R.Grade |
| Description: | A clear colourless mobile liquid with a characteristic order. | A clear colourless mobile liquid with a characteristic order. |
| Distillation Range: | 340°C-360°C | 340°C-350°C |
| Wt per ml at 10°C: | 0.714-0.718 | 0.713-0.715 |
| Water insoluble matter: | NIL | NIL |
| Acidity (as CH3 COOH): | 0.002% | 0.001% |
| Non Volatile matter: | 0.002% | 0.0005% |
| Aldehydes & Ketones (CH3 CHO): | 0.004% | 0.002% |
| Ethanol: | Not specified | 0.05% |
| Ether Peroxides: | 0.0003% | 0.000015% |
| Methanol: | NIL | NIL |
| Substances darkend by Sulphuric Acid: | Not Specified | Passes Test |
| Odourous Impurities: | Not Specified | Passes Test |
| Water: | 1% | 0.2% |
| Assay by GC: | Min 98% | Min 99.5% |
