Indian Forest Records. 
34 
[VOL. IX 
as the oil from the ripe seeds was more thoroughly investigated the 
details given below refer to this oil. 
A quantity of the oil was washed with dilute sodium carbonate 
solution to remove the free acids, with dilute sodium hydroxide solution 
(5 per cent) to remove any phenols and finally, after drying over 
potassium carbonate, distilled imder diminished pressure (100mm.) 
when the following fractions were obtained : — 
No, 
B. P. 
Yield 
per cent. 
30° ■ 
< 
30° 
I 
98—110° 
84 
0-8389 
1-4654 
— 30-82° 
II 
110—120° 
8-8 
0-8422 
1-4675 
— 21-34° 
III 
120—180° 
4-6 
0-8712 j 
1-4731 
— 18-18° 
IV 
Free acids and loss . 
2-6 
On refractionation the following fractions were ultimately ob- 
tained : — 
.Vo. 
B. P. 
Yield per cent. 
I 
95—110° 
90-8 
II 
110—120’ 
1-8 
III 
120—150° 
10 
IV 
150—180° 
2-0 
V 
above 180° 
00 
6 
Fraction I 
was redistilled using a 
four pear Young still head 
when it was found to distil very constantly at 159’5 — 1657705mm. 
and on distillation over sodium was found to boil at 162-5 — 163-57 
705mm. The constants of ^-sabinene have been given in Table II. 
Oxidation to l-Sdbinenic Acid. 
The terpene (25 grammes) was oxidised with potassium perman- 
ganate under the conditions described by Wallach (Aimalen. 1908, 
265), and the sparingly soluble sodium salt purified by recryst- 
aliisation from water. On acidification the pure salt deposited an oil 
which slowly sohdified and was recrystaUised from hot water from which 
[ Ui ] 
