Chemistry of Essential Oils

Oil.

Abies balsamea.

,, canadensis.

„ magnified.

Larix decidua.
,, pendula.
Picea canadensis
„ excelsa (P. vul-
garis).
„ nigra.
„ rubens
Pinus cembra
„ contorta.

„ cubensis.

,, halapensis

„ heterophylla

„ laricio

„ palustris.

„ strobus..

Specific

Gravity.

0-890 to 0-892

0-907 „ 0-913

0-8665

0-878

0-881

0-922

0-875 to 0-890

0-913

0-954

0-880

0-869

0-868

0-880 to 0-896

0-887 „ 0-889

0-865 „ 0-870

0-883 „ 0-885

0-901

Rotation.

- 30°

• 18° to - 26°
  
  
  • 16-7°
  
  
  
  

+ 0° 22'

—

—

• 20° to - 40°
  
  
  • 23° 50'
    —
  
  
  
  

• 29°

• 18°

+ 9° 40'

• 20° to - 25°


• 32° „ - 36°

+ 3° „ + 8°

- 26° „ - 31°

- 39-7°

Refractive

Index.

—

1-4861

—

—

—

—

_

. 1*4831

—

1-4845 to 1-4869

1-4810 to 1-4830

1-4827

Esters as

Bornyl Acetate.

17 to 20°/ 0

35 „ 40°

3'5°/ 0

15°8°/

/

25°/°

6 to 10°/ 0

38°/ 0

8°/ 0

—

2°

2-5 to 3°

3-5%.

1 to 3-5°/ 0

1-5 to 2°/ 0

8-6°/ 0

Constituents.

Z-pinene; bornyl acetate.

Z-pinene ; bornyl acetate, cadinene.

Z-jS-pinene ; Z-phellandrene ; furfural;

borneol; bornyl acetate.

Borneol; bornyl acetate.

a-pinene; bornyl acetate.

Limonene; dipentene, bornyl acetate.

Z-pinene ; dipentene; 1-phellandrene;

cadinene; bornyl acetate.

Bornyl acetate.

Borneol; bornyl acetate.

Pinene.

Furfural; Z-piuene ; Z-camphene ; Z-phel-

landrene ; dipentene; cadinene ;

bornyl acetate and methyl-chavicol(?).

Z-pinene; limonene; borneol; bornyl

acetate and free fatty acids.

Furfural; Z-pinene; 1-camphene; dipen-

tene ; borneol ; cadinene ; bornyl

acetate and free fatty acids.

Bornyl acetate.

Furfural; Z-pinene ; Z-camphene ; dipen-

tene ; cadinene ; borneol and its

esters.

Z pinene ; bornyl acetate.

O

O