Chemistry of Essential Oils

BUBSEBACEJE

No. 1.

473

No.

1 2 3 4 5 6

10°/ 0

20%

20°/ 0

20%

20%

10%

(residue)

Specific Gravity.

0-868

0-870

0-871

0-872

0-876

0-913

Optical Rotation.

- 11°

- 11° 30'

- 13°

- 13°

- 12°

Refractive Index.

1-4580

1-4590

1-4605

1-4612

1-4620

1-4750

, No.

1 2 3 4 5 6

10%

20%

20%

20%

20%

(residue)

No. 2.

Specific

Gravity.

0-870

0-870

0-871

0-873

0-877

0-909

Optical

Rotation.

- 10° 30'

- 10° 20'

- 10° 40'

- 10° 10'

- 9° 40'

No. 3.

Specific

Gravity.

0-872

0-871

0-873

0-874

0-876

0-914

Optical

Rotation.

- 11° 40'

- 11° 30'

- 12°

- 11° 50'

- 11° 10'

No. 4.

Specific

Gravity.

0-871

0-871

0-873

0-874

0-876

0-912

Optical

Rotation.

- 12°

- 13°

- 13° 20'

- 11° 50'

- 10° 30'

The characters of the original oils were as follows:—

No.

2

3

4

Specific Gravity.

0-882

0-882

0-877

0-879

Optical Rotation.

- 11°

- 10°

- 11° 30'

- 12° 10'

Schimmel gives the following figures for two dextro-rotatory oils:—
Oil I.: d 15 o 0-8816 ; ad + 6° 3'; acid number 1-7; ester number 20'0;
146209 ; soluble in 16 and more volumes 70 per cent, alcohol,
distillation in vacua there passed over :—

On

No.

1 2 3 4 5 6

Pressure.

4 mm.

* »>

5 „

5 „

5 „

Temperature.

up to 66°

66 , 67-5°

67-5 , 68°

li , 76°

76 , 82°

82 , 96°

Per Cent.

8-5

23-5

32-1

17-0

2-1

8-7

Optical Rotation.

ad+ 6° 30'

Od + 8° 18'

ad+ 9°

aa + 7° 30'

ad+ 3° 20'

o«i - 10° 5'

Remarks.

I linalol

j" fraction

Oil II.: dl5o 08783 ; ad + 8°; acid number 14 ; ester number 35;
nd2QO 146149 ; soluble in 2'0 and more volumes 70 per cent, alcohol. On
distillation in vacuo the following passed over:—