SULPHURIC ACID ON DIALLYL. 7 



percentage of iodine (viz. 63-98 per cent.) contained in the 

 mixture 2C 6 H I2 . HI + C 6 H I0 j (°^». 



Hydride of Hexyl. — Hexyl iodide obtained from pseu- 

 doxide of hexyline was, according to Schorlemmer's method 

 for the conversion of iodides into hydrides, acted upon by 

 granulated zinc in presence of hydrochloric acid for about 

 twenty-four hours in a flask attached to an upward con- 

 denser. The liquid furnished on distillation an oil which 

 was but slightly acted upon by bromine, thus indicating 

 that but little of the defines had been formed. After a 

 second distillation, the oil was purified by agitating with, 

 and distilling from, sulphuric acid alone, and then by 

 treating it with a mixture of nitric and sulphuric acids. 

 The distillate, after neutralizing with dilute caustic soda, 

 and drying over calcium chloride, boiled constantly at 

 68°-69°. The analyses below show this substance to be 

 hexyl hydride : — 



(a) 0*3575 substance gave 1*0945 carbonic acid, and 0*5245 water. 



(b) 0-3942 „ „ 1-2048 „ „ „ 0*5826 „ 



Found. Calculated for 

 (a) (b) C 6 H u- 



C 8349 83-35 8 372 



H 16-30 16*42 16-28 



9979 99'77 ioo-oo 



Oxidation of the Hexyl Iodide, derived from Pseudoxide 

 of Hexyline. — A few grams of the iodide were heated in a 

 flask attached to an upward condenser for four hours, with 

 an oxidizing solution of the following strength : — 



20 grams of potassium bichromate. 

 30 grams of sulphuric acid. 

 60 cub. cent, of water. 



During the operation much carbonic acid was evolved. 

 At the end of four hours, the same amount of an oxidizing 

 solution of the same strength was added to the contents 

 of the flask, which were heated together for the space of 



