Part I.] Puran Singh : Turpentine Oil and Indian Rosin. 51 
Other bazar samples of turpentine were found to be adulterated 
with petroleum and were useless for purposes of comparison. 
The Bhowali redistilled oil and American oil obtained from Messrs . 
Turner, Morrison fy Co., Calcutta, compared. 
A small quantity of the best American turpentine available was 
obtained from Messrs. Turner, Morrison & Co., Calcutta. The oil 
supplied bad a pale yellow colour and a slightly rancid smell. On 
fractional distillation it readily all distilled over below 163° C. : — 
X50°—155° C.70-0 per cent. 
155°—163° C. 27 0 „ 
Residue above 163° C.2-5 „ 
Taking this oil as supplied by Messrs. Turner, Morrison & Co. 
as standard American turpentine oil, it compares with the redis¬ 
tilled oil and Z in the following table: — 
TABLE XI. 
— 
1 
The 
Bhowali 
crude oil. 
Z mark 
Bhowali 
oil. 
Redis¬ 
tilled 
oil. 
Bhowali 
extra 
fine. 
American tur¬ 
pentine oil 
(as obtained 
from Messrs. 
Turner, 
Morrison 
& Co., 
Calcutta). 
Passing below— 
155°—165° C . . 
27-5% 
80-0% 
80-0% 
92-5% 
100% 
172° C. . 
60-0% 
91-0% 
95-0% 
100-0% 
Acid number 
3-21 
Nil 
0-89 
Nil 
3-36 
Specific gravity at 
22° C. 
0-869 
0-8635 
! 
0-864 
Parts of 90 per cent, 
alcohol required 
by 1 part of tur¬ 
pentine to effect 
solution. 
8—9 
7—7-2 
•• 
6 
t w ] 
