SANTALACEJE
D.
185
Fraction.1 2 3 4 5 6 7 8 9
Specific Gravity.0-977
0-964
0-969
0-975
0-979
0-980
0-981
0-981
0-978
Optical Rotation.- 18°
- 17°
-16°
- 15°
- 15^3
- 14°
- 16
°- 18°
- 22°
Refractive Index.1-5078
1-5038
1-5051
1-5068
1-5072
1-5078
1-5083
1-5083
1-5086
A comparison of these figures will prove of the utmost service to the
•Analyst.
It is obvious that a dextro-rotatory oil is present in these adulterated
samples, which makes the optical rotation of the fractions very much
lower than is the case with normal pure oils. The divergence between
the fractions in pure oil is but little, and in no case was the optical
rotation below - 14°.
The principal constituent of santal oil is a mixture of alcohols, which,
lot the purposes of analytical determination, are classed as " santalol "
and returned for the purposes of calculation as of the formula G15TL24O.
The following are the constituents which have, so far, been isolated
•from the oil:—
- Isovaleric Aldehyde.—Traces of this fatty aldehyde C 4 H 9 CHO
have been isolated, and recognised by its thiosemicarbazone, melting at
49° to 53°. - Santene.—This body is a hydrocarbon of the formula C 9 H 1 4. It
is, therefore, apparently a lower homologue of the terpenes. The purest
specimen so far prepared had the following characters :—
Specific gravity at 15° 0-8708
Optical rotation± 0°
Refractive index at 20° 1-4678
Boiling-point 140° to 141° at 770 mm. - Nortricycloeksantalane.—This body is a hydrocarbon of the
formula CnH 18. A specimen purified by distillation over sodium was
iound to have the following characters :—
Specific gravity 0-9133 at 15°
Optical rotation - 23° 55'
Refractive index 1-47860
Molecular refraction ........ 46-74
Boiling-point. 183° - Santenone.—This compound is a ketone of the formula C9HUO,
isolated from the oil by Muller. It forms a semicarbazone melting at
"224°. It is a solid body, with an odour recalling that of cineol and
camphor, and having the following characters :—
Melting-point.
Boiling „.
Specific rotation
Oxime
Semicarbazone
58° to 61°
193° „ 195°- 4° 40'
liquid
melting-point 224°
- Santenom Alcohol.—This alcohol, also termed norisoborneol, is, in
all probability, the alcohol corresponding to the ketone santenone. It