Chemistry of Essential Oils

CHARACTER OF PEPPERMINT OILS (POWER).

Designation of the Oil.

I.

la. 16. Ic. Id.

le.

lla. 116. lie. lid. III. IV. V. VI.

F. B., from Dry Herb. F. B., from Fresh Herb Wayne Co., N.Y., 1892 1893 „ „ Twice Rectified (F. S. & Co.) V. B. Co., Mich., 1893. Wayne Co., Mich., 1893 St. J. Co., Mich., 1893 (I.). „ 1893(II.). "Rose Mitcham"^ " Crystal White " V Michigan. " Redistilled Oil " J Mississippi Japanese, Normal „ Dementholised Mitcham

VII. Saxon
Russian Oil
French Oil
Italian.

0-9140

0-9130

0-9158

0-9110

0-9067

0-9135

0-9083

0-9050

0-9105

0-9250

0-9100

0-9030

0-9070

0-9100

0-905 to 0-915 0-918 „ 0-921 0-912 „ 0-925

Optical Rotation in 100 mm. Tube.

32°0'

30° 0'

26°

32°

29°

28°

9°

19°

23°

13°

34°

31°

27°

26°

17° to

6° „

2° „

45' 30' 45'

20' 30' 45' 30' 35' 55' 30' 40' 45' 20' 55'

0' -22° -10° -16°

theers. ss j-s If

pu]1 Cent. 14-12 11-25 9-32 9-04 8-61

6-39 7-73 3-63 4-23 4*37 6-74 8-59 11-47 3-45 5-71 4-92

6-38 5 5 to 10 10

Free Menthol.

Per Cent. 45-5 43-2 40-8 46-1 51-0

43-6 50-3 28-9. 29-6 44-2 44-2 46-5 24-2 72-7 55-1 53-9

61-2 45 35 to 40 46

Total Menthol.

Per Cent. 59-6 54-5 50*1 55-1 59-6

50-0 58-0 32-6 35-8 48-6 50-9 55-1 35-7 76-2 60-8 58-8

67-6 50 45 to 50 50 „ 60

From 50 c.cm, of Oil there Distil in c.cm. be- tween the Temperatures noted:

1-3

0-6

1-4

1-1

1-5

1-9

1-7

1-9

3-4

4-4

1-7

3-3

0-9

0-7

0-5

1-4

1-2

1-8

1-4

3-7

5-0

1-6

2*6

7-0

9-6

5-8

6-5

0-3

0-4

1-6

0-7

1-7

4-3

5-7

6-8

5-0

8-8

9-4

5-5

12-0

7-6

13-4

9-9

8-1

1-2

3-4

10-2

12-2

10-9

9-4

8-5

10-0

10-7

14-7

13-2

9-6

14-0

13-2

17-1

15-4

8-8

6-5

22-0

20-7

24-7

21-3

12-0

11-6

12-9

13-9

12-2

12-4

12-2

11-6

10-1

3-2

9*4

9-9

16-2

17-2

12-0

8-6

11-6

9-8

9-2

7-3

7-6

4-2

2-3

8-9

4-4

3-3

3-4

5-2

11-8

2-1

3-3

2-1

3-2

1-5

4-8

1-0

3-1

2-4

6-1 6-7 6-3 5-4 5-2

5-1 5-8 3-3 4-1 2-5 4-1 8-7 6-6 3-5 2-4 3-7

2-1

W

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