3 
Indian Forest Records. 
[VoL. IX. 
PART II. 
THE OIL FROM CALOPHYLLUM WIGHTIANUM. 
Calophyllum Wightianum is a fairly large evergreen tree common 
on the banks of rivers and it also occurs in evergreen forests along the 
Western Ghats from Kanara southwards. The seeds are found in large 
quantities on the shores of estuaries. Owing to the fact that it is 
stated to have toxic properties the oil is not used as a foodstuff but 
finds local application as an illuminant amongst the poor classes. 
The oil from C. Wightianum does not appear to have been examined 
previously although the oil from the closely related C. Inofhijllum L. 
has formed the subject of previous investigations (Lewkowitsch, Oils 
and Fats. Vol. II. p. 309). The latter oil appears to find a considerable 
market and it seemed therefore of interest to examine the oil from C. 
Wightianum in order to determine in how far it resembled in its general 
properties the oil from C. Inophyllum. 
From a consideration of the constants given in Table I it will be 
apparent at once that the two oils resemble one another very 
closely and there would appear to be little doubt that the oil from 
the seeds of G. Wightianum could be used for the same purposes as 
the oil from C. Inophyllum, 
TABLE I. 
— 
Original oil 
from C. 
W ightianum. 
Refined oil 
fro rn C. 
W ightianum. 
Original oil 
C. Inophyl- 
lum.(2) 
Refined oil 
from C. 
Inophyllum. 
(2) 
D ?I! 
27* 
0-9347 
0-932 
0-9415 
. . 
27° 
N 
D 
1-477 
1-4759 
1-4772 
-- 
Acid valtie 
38-3 
2-1 
... 
... 
Saponification value 
161-7 
203-8 
198-7 
191 
Acetyl value 
nil 
nil 
Unsaponifiablc matter 
1 i 
nil 
... 
Roichert-Meissl value 
0-2 
nil 
... 
... 
Iodine value 
92-9 
103-0 
95-3 
86-0 
Titre test 
20-5 
16-5 
... 
Resin acid (1) 
10-4 
nil 
18-3 
... 
(1) This was determined by the method described below. 
(2) Quoted from Lewkowitsch op. cit. p. 370. 
[ 100 ] 
