Chemistry of Essential Oils

> w tr 1 tr 1 o FIG. 14.—Gathering tuberose at Grasse. [Rouer-Bertrand Fits. ...

96 THE CHEMISTRY OF ESSENTIAL OILS IRIDE^E. OIL OF ORRIS ROOT. Three species of the Iris are used for the preparation of this oi ...

o FIG. 15.—Cultivation of orris in the south-east of France. O \Pmfim\ei w Mode) ne ...

98 THE CHEMISTRY OF ESSENTIAL OILS the natural violet flowers. Tiemann and Kruger then attempted to synthesise irone, believing ...

ZINGIBEBACEJE 99 The oil has the following characters :— Specific gravity0-8740t Optical rotation-25° Eefractive index 1-4885 Ac ...

100 THE CHEMISTKY OF ESSENTIAL OILS Fromm and Fluck. 1 These chemists isolated a small fraction of from 1 to 2 per cent, boiling ...

ZINGIBEKACE^S 101 OIL OF ALPINIA GALANGA. The rhizome and roots of Alpinia galanga yield 004 per cent, of essential oil having t ...

© YO i3 W a W CO Plwlo Gamiei."] 16.—Cardamoms in Tahiti; Lake Vahiria. \Ptyfumerie Moderne, ...

ZINGIBERACE^ 103 the B.P. calls ovoid'; they vary in length from £ in. to | in. (the latter 1 in 10), and have a smooth pericar ...

104 THE CHEMISTEY OF ESSENTIAL OILS These figures are in fair agreement with those given for Malabar oil, but in no way resemble ...

ZINGIBEBACE^E 105 -danielli. The yield of oil was 233 per cent., its specific gravity was -907 and its optical rotation - 20° 34 ...

106 THE CHEMISTEY OF ESSENTIAL OILS 15° with separation of paraffin; the last-named body, when recrystal- lised from alcohol, me ...

ZINGIBEEACE^107 107 Specific gravity Optical rotation Acid value .... Ester „ 8„16 „ „ (after acetylation) 0'934 to 0'962 25° „ ...

108 THE CHEMISTKY OF ESSENTIAL OILS OIL OF K^JMPFEBIA ETHELS. The oil distilled from the tubers of Kampferia ethela has been exa ...

PIPEEACE^E 109 PIPERACE/E, CUBEB OIL. This oil, which is official in the British Pharmacopoeia, is distilled from the fruit of P ...

110 THE CHBMISTKY OF ESSENTIAL OILS 4. Yield, 14'0 per cent. oil. Specific gravity (15°), 0-9233 ; optical rotation - 37'60°. Fr ...

PIPEKACE.E 111 Esters Alcohols. None . Saponification number after acetylation 56-1 As a result of their observations on these e ...

112 THE CHEMISTEY OF ESSENTIAL OILS Class 2.—Much resembling real cubebs, but outwardly shrivelled,, with longer and broader tai ...

PIPEKACE.E 113 That the sample under review did not consist entirely of real cubebs, and that fruits must have been present tha ...

114 THE CHEMISTEY OF ESSENTIAL OILS ether, which appears to be a methyl-butenyl-dimethoxy-methylene- dioxy-benzene, but Thorns l ...