Chemistry of Essential Oils

CONIFEE^E 35 used, but with a series of bulbs, from 25 to 35 per cent, is obtained be- tween 155° and 160°, and from 10 to 20 pe ...

36 THE CHEMISTEY OF ESSENTIAL OILS The oil contains d-a-pinene, d-camphene, d-sylvestrene, a ketone resembling thujone, terpinyl ...

CONIFERS 37 It is soluble in 3 to 4 volumes of 70 per cent, alcohol. The greater part of the oil distils between 180° and 208°. ...

38 THE CHEMISTKY OF ESSENTIAL OILS Schimmel, 1 the amount of this ester present is about 40 per cent., and there is in addition ...

CONIFEB.E 39 + i 26 60 Specific gravity 0-863 to 0'892 Optical rotation-f 2° Ester value 0 , ,, „ (after acetylation) 5 These fi ...

40 THE CHEMISTKY OF ESSENTIAL OILS having a specific gravity 0'852 and optical rotation + 24°; and an oxy- genated body, C 10 H ...

CONIFEK^E 41 •evidently still remained with the fraction, as indicated by the refractive index, although the results, taken as a ...

42 THE CHEMISTEY OF ESSENTIAL OILS OILS OF ARAUCARIA CUNNINGHAMII. This Australian tree, known as the Moreton Bay Pine, is found ...

CONIFERS 43 A latex exudes from the tree, which has been examined by Baker and Smith, 1 and is of interest in that it yields an ...

44 THE CHEMISTEY OF ESSENTIAL OILS odour recalling that of menthene. It is probable that a second hydro- carbon of the formula C ...

CONIFEK.E 45 OILS OF THE GENUS CALLITRIS. A large number of essential oils derived from various parts of this important family o ...

46 THE CHEMISTEY OF ESSENTIAL OILS was 206 33, equal to 72'2 per cent, of ester. In the separated alcohols both borneol and ger ...

CONIFEE^B Seven samples gave the results set out in Table I, and five of these samples yielded fractionation results as set out ...

48 THE CHEMISTEY OF ESSENTIAL OILS Specific Gravity, ° C. 0-8481 @ 22 0-8563 @ 23 Rotation, «D. 21-6 — Refractive Index, ° C. ...

CONIFEBJE tirely absent. The terpenes present appear to be laevo-limonene and pinene. The oil has the following characters:— Spe ...

50 THE CHEMISTEY OP ESSENTIAL OILS CALLITBIS MUELLEBI. The leaf oil resembles turpentine in odour and consists almost en- tirely ...

CONIFEEJE 51 to obtain it pure by fractional distillation ; but by continued redistillations 10 per cent, of the oil was obtaine ...

52 THE CHEMISTKY OF ESSENTIAL OILS nitric acid a yellow nitro-compound was obtained. When dissolved in light petroleum and treat ...

CONIFEE^ 53 The oil was almost free from compounds containing oxygen, and esters, alcohols, aldehydes, and similar bodies were p ...

54 THE CHEMISTRY OF ESSENTIAL OILS On fractionation the two oils gave the following results :— 157° to !67° 167° , 177 ° 177° 18 ...