4 MR. W. K. JEKYLL ON THE ACTION OF 



the case of hexylene, which is the true homologue of va- 

 lerylene. 



Oxidation of Hexylene Pseudoxide. — An oxidizing solu- 

 tion of the following strength was used : — 



15 grams potassium bichromate. 

 20 grams sulphuric acid. 

 100 cub. cent, water. 



50 cub. cent, of this solution were added to about 5 grams 

 of the oil in each of two sealed tubes, which were exposed 

 to a temperature of ioo° for about four hours. On open- 

 ing the tubes a gas w T as evolved, which, on passing it into 

 lime-water, was seen to be carbonic acid. The contents 

 of the tubes were distilled from a retort, the distillate neu- 

 tralized with sodium carbonate, and evaporated on a water- 

 bath nearly to dryness. The sodium salts were then 

 washed into a retort with a slight excess of sulphuric acid, 

 the distillate was neutralized with silver carbonate and 

 filtered, on which crystals of pure silver acetate separated 

 out, which, after drying, were analyzed with the following 

 results : — 



0*331 salt gave 0*2132 silver. 



Calculated for 

 Found. silver acetate. 



64*41 per cent, silver. 64*67. 



On evaporating the mother liquor a second crop of crystals 

 was obtained, which also consisted of pure silver acetate. 



0*4497 salt gave 0*2903 silver. 



Calculated for 

 Found. silver acetate. 



64*55 per cent, silver. 64*67. 



A second experiment with an oxidizing solution of the 

 same strength yielded precisely similar results, viz. carbonic 

 and acetic acids as the products of oxidation. 



(a) 0*2365 salt gave 0*1528 silver. 



(b) 0*3020 salt (from mother liquor) gave 0*1944 silver. 



Found. 

 (a). (b). 



64*61 64-37 per cent, silver. 



