15 
Part I.] Puran Singh: Turpentine Oil and Indian Rosin. 
The sample of turpentine oil (specific gravity at 30° C. = 0'867) 
as at present distilled at Kalsi was washed with water and frac¬ 
tionated with the following results: — 
The crude oil as distilled at 
(At Kalsi.) 
present. 
160°—165° C. 
40* 
per cent. 
165°—172° C. 
31 
99 
172°—180° C. 
14 
99 
180°—200° C. 
4 
99 
Residue above 200° C. 
11 
99 
The yield of turpentine oil by the present method at the Kalsi 
Factory is 18—19 per cent, by weight. 
Naini Tal sample. —As it will be clear from the results given 
below, the sample of the oleo-resin from the Naini Tal Division 
seems to be richer! than that from Jaunsar. The Naini Tal sample 
yielded on steam distillation 22 per cent, by weight of the turpen¬ 
tine oil, which gave the following fractions: — 
Steam distilled turpentine oil. 
(Naini Tal.) 
Up to 170° C. 
170°—180° C. 
180°—200° C. 
Residue above 200°C. . 
62-5 per cent. 
13 0 
12-5 
120 
99 
99 
The same rectified ga\ 
e the following 
fractions: — 
Up to 165° C. 
165°—172° C. 
Residue above 172° C 
80 per cent. 
15 
* This oil has 71 per cent, passing below 172° C., while the crude oil of Bhowali 
has only 64'5 per cent, passing below that temperature. This difference is due to the 
rate of distillation. At Kalsi they distil much more slowly than at Bhowali. 
t But this may be due to various causes, such as incidental evaporation, atmo¬ 
spheric oxidation, etc. 
[ 15 ] 
