Part I.] Ptjran Singh : Turpentine Oil and Indian Rosin . 45 
this portion of D if allowed to remain in contact with the rest of 
the oil would hasten the oxidation of the oil when stored and in¬ 
crease its acidity. 
The redistilled D was mixed with A,, B and C in proportion of 
| D + A + B + C, and the sample thus prepared was fractionated. 
Fractions of A + B + C + ;§ redistilled D or Z. 
155°—160° C.55 per cent. 
160°—165° C.25 
165°—172° C.11 
Above 172° C. residue.9 „ 
This oil Z, therefore, has 91 per cent- passing below 172° C. In 
the preparation of this oil there is a loss of only 6’25 per cent. 
D put back into the crude turpentine . 
Instead of redistilling D, it was proposed to put D back again 
into the still and the turpentine was divided into five fractions as 
follows: — 
(a) First 10 bottles. 
( b ) Second 10 bottles. 
(c) Third 10 bottles. 
( d ) Fourth 10 bottles. 
(e) The last 4 bottles. 
The results of fractionation of the fractions are given in the 
following table: — 
TABLE VIII. 
Boiling between 
(a) 
(b) 
(c) 
(d) 
155°—160° C. 
55-0% 
44*0% 
40*0% 
22-0% 
160° -165° C. 
20-0% 
30-0% 
35-0% 
33-5% 
165°—172° C. 
12*5% 
12*0% 
12*0% 
18*5% 
172°—180° C. 
2-5% 
4-0% 
5-5% 
10*0% 
Residue above 180° C. . 
10*0% 
10*0% 
7*5% 
16*0% 
t 45 ] 
