Grade designation | Specific gravity at 270/270C | Optical rotation | Refractive index at 270C** | Solubility in 80% (by volume) Ethyl alcohol | Cineole content not less than per cent by weight *** | Freezing point 0C |
1 | 2 | 3 | 4 | 5 | 6 | 7 |
Grade-I | 0.8995 to 0.9065 | (-)50 to (+) 100 | 1.4561 to 1.4669 | Soluble in equal volume | 70 | 35 and above |
Grade-II | 0.8995 to 0.9065 | (-) 50to(+)100 | 1.4561 to 1.4669 | Soluble in equal volume | 70 | 35 and above |
Description and appearance
Indian Eucalyptus oil is the colorless pale yellow essential oil obtained by water or steam distillation of fresh leaves of Eucalyptus Globulus label or from other cineole containing species of Eucalyptus (family: Myrtice) and rectified. It shall be clear, free from sediment, suspended matter, separated water and possess the characteristics aromatic camphoraceous taste, followed by sensation of cold. The eucalyptus oil shall satisfy the test requirements for the limits of aldehyde (1) and phellandrene (2). It shall be free from admixture of any other oil or substance.