MABERY AND HUDSON. — AMERICAN PETROLEUM. Ill 



increase in weight was fifty per cent in excess of the quantity tlieoret- 

 ically requiiocl to i'oini nioiiocliloroctane. The protUict, containing a 

 small amount of tiie iiychocarbon still uni-luuiged, was wa:^hed, dried, 

 and submitted to iVactional distilhitiou in vacuo under oO mm., since it 

 was found that it couUl not be distilled under atmospheric pressure with- 

 out decomposition. A considerable portion collected at 89°-91°, that 

 distilled under atmospheric pressure, normal conditions, at 173°-174°. 

 Schorlemmer stated that ohloriae converts normal octane into a mixture 

 of primary octyl chloride, boiling point 171)°-180°, and secondary octyl 

 chloriile boiling at 17J^. None of our product collected at the point 

 corresponding to the normal chloride, although the quantity was not 

 sufficient to determine the boiling point with absolute precision, and 

 not sufficient to form oiher compounds. Pelouze and Cahours * gave 

 168°-172° as the boiling point of the chloride which they formed from 

 petroleum octane, but their hydrocarbon was evidently not fully purified. 

 This substance gave upon analysis percentages of carbon, hydrogen, 

 and chlorine required for chloroctane : — 



I. 0.1222 gram of the oil gave 0.2880 gram CO2, and 0.1264 gram 

 H2O. 

 II. 0.1821 gram of the oil "ave 0.1792 gram AgCl. 

 III. 0.2203 gram of the oil gave 0.2200 gram AgCl. 



III. 



24.69 



A determination of vapor density gave a value required for chlor- 

 octane : — 



0.1675 of the oil gave 76 c.c. of vapor at 182°, and under a tension 

 of 418 mm. 



Calculated for CeHijCL Found. 



5.14 5.16 



The small amount of distillates above 91° in vacuo showed the pres- 

 ence in minute proportions of higher chlorinated products, but it would 

 require much larger quantities than we could conveniently procure to 

 ascertain their composition. 



* Jahr. Fittig, 1863, p. 528. 



