Vol. I, No. 3.] Composition of the ott from Bir Bahoti. 
LN. 8.] 
a1 
Ot 
odour of ethyl butyrate was obtained. The distillate with steam 
also contained a small quantity of a solid acid. 
The following values were obtained for the oil by the usual 
methods. It determining the saponification value aniline blue was 
used as an indicator and gave fairly good results, the very deep 
colour of the oil making very accurate observations extremely 
difficult :— 
Sp. Gr. at 15° 906-907) 
Acid value ce 62°3 
Saponification valme. 194:7 +Mean of three 
Ester value 132°4 | determinations. 
Unsaponifiable 3°7 per cent. ) 
Reichert-Meiss] value 0°55 
Hehner value soo 
Todine value soa BS) 
The unsaponifiable matter above was extracted with ethyl 
ether from a solution of the soda soap. It contained a good deal 
of colouring matter. 
Preliminary evamination.—As a preliminary examination part 
of the extracted oil was saponified with potassium hydrate and 
the fatty acids liberated. These were then fractionally precipitated 
with an alcoholic solution of magnesium acetate. The various frac- 
tions were decomposed with hydrochloric acid, and the melting 
points of the free acids thus obtained were all between 48° and 66°. 
The above indicated the probable presence of a mixture of the 
elycerides of the more commonly occurring fatty acids, but re- 
crystallization of the six fractions of the free acids obtained from 
the magnesium soap gave a comparatively large amount of an acid 
melting at about 52°, which seemed to indicate the possibility that 
there was a large amount of myristic acid in the oil. 
Unsaponifiable matter—A quantity of the oil was carefully 
saponified with alcoholic potash, and the soap dried on clean sand. 
This was then extracted with ethyl ether in a Soxhlet apparatus. 
The extract contained soap, so it was dried on sand and extracted 
a second time. The insoluble portion was added to the soap left 
from the first extraction. The ether extract seemed to contain some 
unsaponified oil, so it was saponified a second time and again ex- 
tracted with ether. On evaporation of the extract the solid product 
was apparently free from soap or oil. This was fractionally erys- 
tallized from alcohol in two fractions which had melting points of 
106° and 95°. These fractions were separately acetylized by boil- 
ing with acetic anhydride under an inverted condenser, and the ace- 
tates precipitated by pouring into boiling water. The acetaes were 
carefully washed and crystallized from alcohol when their melting 
points were 98° and 68° respectively. The acetates were decom- 
posed with potassium hydrate and the alcohols taken up in ether. 
The extracts were evaporated to dryness and crystallized from 
alcohol and had melting points of 110° and 104” respectively. 
Neither of the products thus obtained crystallized in the 
