368 THE CHEMISTEY OF ESSENTIAL OILS
OIL OF EUCALYPTUS EOSN.
This oil has the following characters :—
Specific gravity0- 9168 to 0-9215*
Optical rotation +7 2°
Refractive index 1-4741 at 16°
Yield 0-72 per cent.
It contains pinene and eucalyptol.
OIL OF EUCALYPTUS EOSTRATA.
This oil has the following characters:—
Specific gravity 0'895 to 0-9065
Optical rotation - 11-7° to - 15-3°
Refractive index 1-4896 at 16°
Yield. .0-1 to 0'4 per cent.
It contains cymene, aromadendral, eucalyptol, phellandrene, and
pinene.
OIL OF EUCALYPTUS EUBIDA.
This oil has the following characters:—
Specific gravity 0-9067
Optical rotation + 3-2°
Refractive index 1-5011 at 16°
Yield 0-008 per cent.It contains pinene, a sesquiterpene, and a little eucalyptol.OIL OF EUCALYPTUS EUDDERI.
This oil has the following values :—
Specific gravity 0*942
Optical rotation - 8-5°
Refractive index 1-4898 at 20°
Yield.0-3 per cent.
It contains pinene, aromadendral, and about 5 per cent, of
eucalyptol.OIL OF EUCALYPTUS SALIGNA.This tree is found in New South Wales.' The oil has the following
characters:—
Specific gravity 0-886 to 0-894
Optical rotation-f+ 32-9° „ + 35-1°
Yield 0-12 to 0-255 per cent.
It contains d-pinene, eucalyptol, eudesmic acid, amyl ester, a free
alcohol, and a valerianic ester.
OIL OF EUCALYPTUS SALMONOPHLOIA.This oil has the following characters :—
Specific gravity 0-9076
Optical rotation + 6-3°
Refractive index 1-4738
Yield 1-44 per cent.
It contains eucalyptol, pinene, and aromadendrene.