OIL OF EUCALYPTUS PERRINIANA.
This oil has the following characters:—
Specific gravity 0*912
Optical rotation + 8*9°
Refractive index 1*4651 at 15°
Eucalyptol .......... 68 per cent.
It contains eucalyptol, pinene, and a sesquiterpene.OIL OF EUCALYPTUS PHLBBOPHYLLA.
This tree is known as the Weeping Gum in Tasmania. It yields an
essential oil having the following characters :—
Specific gravity 0*8766 to 0*8925
Optical rotation - 22*4° „ - 32*56
Refractive index 1-4702 at 15°
It contains Z-a-pinene, about 10 per cent, of eucalyptol, phellandrene,,
eudesmol, and a sesquiterpene.OIL OF EUCALYPTUS PILULARIS.
This oil has the following characters :—
Specific gravity 0'B85 to 0*903
Optical rotation - 4*3° „ + 11-1°
Refractive index 1*4961 at 16°
Yield 0*07 to 0-18 per cent.
It contains Z-phellandrene, a sesquiterpene, eucalyptol, pinene, and
an alcohol not yet identified.OIL OF EUCALYPTUS PIPERITA.
This tree is found in New South Wales, Victoria, and Queensland,
and is known as a " Peppermint Tree". The oil contains eudesmol,
pinene, eucalyptol, phellandrene, and a sesquiterpene. Probably piperi-
tone is also present. The oil has the following characters:—
Specific gravity 0-911
Optical rotation - 2*7°
Refractive index. 1*4838 at 16°OIL OF EUCALYPTUS PLANCHONIANA.
This oil has the following characters :—
Specific gravity 0'904 to 0*915
Refractive index 1-4878 at 16°
Yield 0*01 to 0*06 per cent..
It contains phellandrene and a sesquiterpene.OIL OF EUCALYPTUS PLATYPUS.
This oil, according to Earl,
1
has the following characters:—
Specific gravity 09045
Optical rotation + 91°
Refractive index 1*4675
Yield ........... 1 per cent.
It contains about 60 per cent, of eucalyptol, 20 to 25 per cent, of pinene,.
and some phellandrene and aromadendrene.
1
Proc. Boy. Soc. Victoria, CJiem. Abstracts, 1917, ii. 1715.