Chemistry of Essential Oils

CONIFEE^ 15 years. The cycle was shortened in order to avoid the use of a ladder, which was found necessary in the fifth year. T ...

16 THE CHEMISTRY OF ESSENTIAL OILS leaf pine oil ". Similar products are brought to market under the names of "light wood oil" a ...

CONIFEE^ 17 The crude oil obtained by any distillation process is redistilled or re- fined before it is marketed. Crude oils fro ...

18 THE CHEMISTRY OF ESSENTIAL OILS Specific gravity at 15° 0-862 to 0-870 Refractive index 1-4680 „ 1-4730 Initial boiling-point ...

CONIFEE^L 19 Tree Designa- tion. Al A2 A3 A4 A5 A6 Cl 02 C3 04 Dl D2 D3 D4 Species. P. heterophylla M tt P. palustris. »» • »» • ...

20 THE CHEMISTRY OF ESSENTIAL OILS The lower iodine value, especially of the last 10 per cent, remaining on distillation is very ...

CONIFEE^ 21 and a small quantity of paraffinoid hydrocarbons. It never exceeds 4 to 5 per cent, of the volume of the original sa ...

Optical Activity.... Specific Gravity .... Temperature of Distillation Action in the Cold on Coal-tar Pitch Behaviour with Abso ...

CONIFEE^E 23 found in the Western parts of the United States, and Adamsl has reported upon similar " wood turpentines ". These r ...

24 THE CHEMISTEY OF ESSENTIAL OILS TURPENTINE FROM PINUS SABINIANA. The oil had a pleasant orange-like odour; specific gravity, ...

CONIFEE^ 25 The oil had a very characteristic odour; it was pungent when freshly distilled, and, after standing some time, was o ...

26 THE CHEMISTEY OF ESSENTIAL OILS Temperature (corrected). °C. 155-9-157-4 157-6 157-9 158-4 158-9 160-0 162-4 176-5 194-9 194- ...

CONIFERS 27 pinene is also present. Zelinski and Alexandroff^1 isolated a highly laevo-rotatory hydrocarbon [OJD = - 70° 45', wh ...

28 THE CHEMISTEY OF ESSENTIAL OILS These facts are recognised in the turpentine market, and users are .content to accept the fra ...

CONIFEE^E 29 pinene. A terpene alcohol, and a sesquiterpene (cadinene ?) are also present. A somewhat similar product is manufac ...

30 THE CHEMISTEY OF ESSENTIAL OILS Specific gravity 0'860 to 0-866 Optical rotation.+ 34° „ + 47° Refractive index 1-4670 „ 1-47 ...

CONIFERS 31 Specific gravity. Optical rotation Refractive index Distillate from 155° to 158° „ 158° „ 160° ,. 160° „ 165° „ 165° ...

32 THE CHEMISTEY OF ESSENTIAL OILS by Baker and Smith. 1 The yield of oil was 11*64 per cent, having the- following characters:— ...

CONIFEE^ 33 OIL OF JUNIPER. The plant yielding this oil is Juniperus communis, a native of Greece, and widely distributed over E ...

34 THE CHEMISTEY OF ESSENTIAL OILS Juniperus nana Willd., with rather longer berries and a prostrate habit. Especially where ban ...