EXAMNIATION OF NAPHTHA FROM RANGOON PETROLEUM. 215 
been tolerably well purified from all substances, excepting those whose boiling points 
are not widely different from its own. We have, therefore, taken pains to analyze 
some of the more prominent among the fractions into which the volatile portion of the 
‘naphtha had been divided, in order to learn whether there might not thus be obtained 
a general idea of the composition of this part of the naphtha. 
The following is a record of the analyses in question, — all statements of degrees of 
temperature here referring to “corrected” boiling points : — 
I. One portion (a) of the fraction 98°-109”, this being the most volatile’ of all the 
products which we have obtained from Rangoon petroleum, gave 0.3294 grm. water 
and 0.771 grm. carbonic acid; another portion (4) gave 0.4533 grm. water and 1.0673 
grm. carbonic acid. 
II. 0.194 grm. of the fraction 121.6°-123.6° gave 0.2589 grm. water and 0.6022 
‘grm. carbonic acid. 
TI. 0.2987 grm. of the fraction 142.3°-144.3° gave 0.3799 grm. water and 0.9416 
_ gtm. carbonic acid. 
IV. 0.1583 grm. of the fraction 151.6°-153.7° gave 0.2048 grm. water and 0.4952 
grm. carbonic acid; another portion (4) gave 0.1346 grm. water and 0.3245 grm. car- 
bonic acid. 
V. A portion of the fraction 154.7°-155.7° gave 0.2002 grm. water and 0.491 grm. car- 
bonic acid. 
VI. 0.1554 grm. of the fraction 158.8°-159.8° gave 0.1986 grm. water and 0,488 
grm. carbonic acid. . 
VII. 0.1714 grm. of the fraction 164°-165° gave 0.2174 grm. water and 0.5422 
grm. carbonic acid. 
VII. 0.1899 grm. of the fraction 172.3°-173.8° gave 0.2398 grm. water and 0.5992 
grm. carbonic acid. 
Reducing these results to per cents., we have 
I. Il. III. Iv. 
a b a b 
Carbon, 85.18 85.27 84.64 85.97 85.34 85.59 
Hydrogen, 14.82 ‘14.78 14.85 14.13 14.40 14.41 
100.00 100.00 99.49 100.10 99.74 100.00 
Ve VIL vu. VIr. 
Carbon, 85.79 85.65 86.23 86.04 
. Hydrogen, 14,21 14.16 14.06 14.01 
100.00 99.81 100.29 100.05 
1 It should be remembered, in this connection, that De La Rue and Miiller, by operating upon large quantities of the petroleum, 
obtained products boiling as low as 50°. 
