Eucaplytus Oil

Eucalyptus oil is the generic name for distilled oil from the leaf of Eucalyptus, a genus of the plant family Myrtaceae.

General Specifications of Eucalyptus Oil

Appearance: Colorless to pale yellow clear liquid
Odor: Characteristic eucalyptol odor
Solubility: Soluble in alcohol & oils. Insoluble in water
Specific Gravity: 0.909 to 0.919 @ 20°C
Optical Rotation: +2.0 to +9.0 @ 20°C
Refractive Index: 1.459 to 1.465 @ 20°C

Eucalyptus Oil BP Grade
Ph Eur

DEFINITION
Eucalyptus oil is obtained by steam distillation and rectification from the fresh leaves or the fresh terminal branchlets of various species of Eucalyptus rich in 1,8-cineole. The species mainly used are Eucalyptus globulus Labill., Eucalyptus polybractea R.T. Baker and Eucalyptus smithii R.T. Baker.

CHARACTERS
A colourless or pale yellow liquid with an aromatic and camphoraceous odour and a pungent and camphoraceous taste.

IDENTIFICATION
First identification  B.
Second identification  A.
A.  Examine by thin-layer chromatography using a TLC silica gel plate.
B.  Examine the chromatograms obtained in the test for chromatographic profile. The chromatogram obtained with the test solution shows 5 peaks similar in retention time to the 5 peaks in the chromatogram obtained with the reference solution.

TESTS
Relative density: 0.906 to 0.927.
Refractive index: 1.458 to 1.470.
Optical rotation: 0° to + 10°.
Solubility in alcohol: It is soluble in 5 volumes of ethanol (70 per cent V/V).
Aldehydes: To pass the test.
Chromatographic profile:
The percentages are within the following ranges:
α-pinene: traces to 9.0 per cent
β-pinene: less than 1.5 per cent
sabinene: less than 0.3 per cent
α-phellandrene: less than 1.5 per cent
limonene: traces to 12.0 per cent
1,8-cineole: minimum 70.0 per cent,
camphor: less than 0.1 per cent.

Eucalyptus Oil FCC food Grade
CAS: [8000-48-4]

DESCRIPTION
Eucalyptus Oil occurs as a colorless or pale yellow liquid with a characteristic, aromatic, somewhat camphoraceous odor and a pungent, spicy, cooling taste. It is the volatile oil obtained by steam distillation from the fresh leaves of Eucalyptus globulus Labillardiere and other species of Eucalyptus L’Heritier (Fam. Myrtaceae).
Function: Flavoring agent.

REQUIREMENTS
Identification: The infrared absorption spectrum of the sample exhibits relative maxima at the same wavelengths as those of a typical spectrum as shown in the section on Infrared Spectra, using the same test conditions as specified therein.
Assay: Not less than 70.0% of cineole (C10H18O).
Phellandrene: Passes test.
Refractive Index: Between 1.458 and 1.470 at 20°.
Solubility in Alcohol: Passes test.
Specific Gravity: Between 0.905 and 0.925.

For Original Monographs of IP Indian Pharmacopoeia BP British Pharmacopoeia USP US Pharmacopoeia FCC Food Grade product, please check with the respective web-pages or books.