184 THE CHEMISTEY OF ESSENTIAL OILS
2.
1
Fraction.1 2 3 4 5 6 7 8 9Specific Gravity.0-965
0-967
0-972
0-975
0-976
0-978
0-978
0-981
0-983
Optical Rotation.- 5°
- 5°
- 4
°
30'- 4° 30'
- 5° 50'
- 6
a
1- - 8 °
- 6
- 10
°
10' - 14
Refractive Index.1-5036
1-5048
1-5062
1-5075
1-5079
1-5083
1-5080
1-5090
1-5095
These figures should be compared with those obtained with genuine
samples of sandal-wood oil. Four samples of authentic origin gave the
following results :—
A.
Fraction.1 2 3 4 5 6 7 8 9
Specific Gravity.0-970
0-970
0 972
0-974
0-977
0-978
0-980
0-980
0-984
Optical Rotation.- 19° 30'
- 17 ° 20'
- 16 °
- 16°
- 15 ° 30'
- 15
°- 16° 40'
- 18
° - 21°
Refractive Index.1-5055
1-5060
1-5060
1-5065
1-5068
1-5068
1-5079
1-5080
1-5084
B.
Fraction.1 2 3 4 5 6 7 8 9
Specific Gravity.0-975
0-969
0-969
0-972
0-979
0-979
0-982
0-984
0-982
Optical Rotation.- 19°
- 18°
- 18°
- 16°
- 14
°- 15 ° 30'
- 16°
- 17° 20'
- 21° 30'
Retractive Index1-5000
1-5044
1-5068
1-5070
1-5072
1-5080
1-5080
1-5075
1-5085
c.Fraction.1 2 3 4 5 6 7 8 9
Specific Gravity.0-970
0-970
0-974
0-977
0-978
0-978
0-979
0-980
Optical Rotation.- 21
°- 17°
- 15°
- 15°
- 15°
- 15°
- 15°
- 17°
- 20°
Refractive Index.