MABERY AND QUAYLE. — CANADIAN PETROLEUM. Ill 



instability, but it probably was not far from 135°. The distillate selected 

 for the formation of this bromide was nearly the same in boiling point as 

 that of the hexylenes from various sources, 65°-70°. Upon analysis val- 

 ues were obtained corresponding to those required for monobromhexane ; 



I. 0.1938 gram of the oil gave 0.3108 gram C0 2 , and 0.1283 gram H 2 0. 

 II. 0.2720 gram of the oil gave 0.3045 gram AgBr. 



Found. 



47.64 



On account of the small amount of this substance it was not possible 

 to purify it more completely. 



Heptylene. 



The fractious 98°-102°, tenth distillation, atmospheric pressure, more 

 nearly corresponding to the boiling points of the various heptylenes, 

 90°-100°, were selected more especially because they contained a con- 

 siderable quantity of the polymerized oil. On either side of these limits 

 the distillates had not changed. After treatment with fuming hydro- 

 bromic acid and fractioning in vacuo, the greater portion of the bromide 

 collected at 76°-80°, 50mm. It could not be distilled under atmos- 

 pheric pressure, but its boiling point was probably not far from 1 60°. 

 The results of analysis corresponded to the composition of monobrom- 

 heptane : 



I. 0.2C0O gram of the oil gave 0.3498 gram C0 2 , and 0.1592 gram 



H„0. 

 II. 0.2117 gram of the oil gave 0.2188 gram AgBr. 



Found. 



II. 



The specific gravity of this heptyl bromide was found to be 1.1601. 



OCTTLENE. 



Octylene was sought for in the fraction 118°-119°, tenth distillation, 

 atmospheric pressure, from which had separated a small quantity of the 



