JPakt I.j Puran Singh : Turpentine Oil and Indian Rosin. 3o 
APPENDIX A. 
(i) Details of Redistillation Experiments carried out to improve the 
Quality of the Oil obtained by Water Distillation in the year 
1908. 
I. 
The usual charge at Bhowali distillery is 300 lbs. of the crude 
oleo-resin or 9 tins, which yields 5T lbs. of the oil which is collected 
in glass bottles of which 41—43 per charge are obtained. Thinking 
that the heavier portions of the turpentine oil will naturally distil 
last, Mr. P. H. Clutterbuck divided the distillate into four fractions, 
the first three of ten bottles each and making about 15 lbs. each by 
weight, the fourth fraction being the last 13 bottles of about 18 lbs. 
These four fractions were received in the Laboratory of the Forest 
Research Institute with the following labels: — 
A denotes first 10 bottles of charge distilled under ordinary 
circumstances. 
B denotes second 10 bottles of charge distilled under ordinary 
circumstances. 
C denotes third 10 bottles of charge distilled under ordinary 
circumstances. 
D denotes the balance (13 bottles) of charge distilled under 
ordinary circumstances. 
The following table shows their general character : — 
TABLE I. 
1 
A 
B 
c 
D 
160°—165° C. 
50-0% 
50-0% 
47 - 50/0 
Nil 
165°—172° C. 
33-5% 
33-0% 
31-5% 
27-5% 
172°—180° C. 
8-5o/ 0 
7*0% 
10-0% 
32-0% 
180°—200° C. 
4*0% 
5-0% 
5 - 50/0 
H-5% 
Residue above 200° C. . 
4-0% 
5-0% 
5 . 50/0 
29-0o/o 
Specific gravity at 30° C.. 
0-859 
0-861 
0-864 
0-883 
Acid number 
1*95 
1-95 
I 
1-95 
7-29 
