EXAMNIATION OF NAPHTHA FROM RANGOON PETROI.ITM. 



215 



been tolerably well purified from all substances, excepting those whose boiling points 



are 



idely different fr 



We have, therefore, taken pains to analv 



of the more prominent among the fractions into which the volatile portion of 



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 (b) gave 0.4533 grm. water and 1.0673 



grm. carbonic acid. 



II. 0.194 grm. of the fraction 121.6°-123.5° gave 0.2589 grm. water and 0.G022 



grm. carbonic acid. 



III. 0.2987 grm. of the fraction 142.3°-144.3° gave 0.3799 grm. water and 0.9416 



grm. 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 (b) 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 



grm. carbonic acid. 



0.1714 grm. of the fraction 164°-165° gave 0.2174 grm. water and 0.5422 



0.1986 grm. water 



and 0.488 



VII 



grm. carbonic acid. 



VIII. 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. 



n. 



in. 



IV. 



a 



Carbon, 85.18 

 Hydrogen, 14.82 



5 



85.27 

 14.73 



84.C4 

 14.85 



85.97 

 14.13 



a 



85.31 

 14.40 



b 



85.59 

 14.41 



100.00 



100.00 



Carbon, 

 Hydrogen, 



v. 



85.79 

 14.21 



99.49 



VI. 



85.65 

 14.16 



100.10 



VII. 



99.74 



86.23 

 14.06 



100.00 



VIII. 



86.04 

 14.01 



100.00 



99.81 



100.29 



100.05 



» It should be remembered, in this connection, that Do La Rae and Muller, by operating npon large quantities of the petroleum, 



obtained products boiling as low as 50°. 



