6 MR. W. R. JEKYLL ON THE ACTION OF 



dried over caustic potash, and distilled at the ordinary 

 pressure of the atmosphere, when it was found to boil at 

 i65°-i67°, which is the boiling-point of the /3 hexylic 

 iodide of Wanklyn. The following iodiue determinations, 

 made by means of an alcoholic solution of nitrate of silver 

 further show the substance to be hexyl iodide. 



(a) 0-2055 substance gave 0*2162 silver iodide, and 0*0045 silver. 



(b) 0-6084 » » 0-6615 >• » 00048 „ 



Found. 



Calculated for 



(a) (b) 



C 6 H 13 L 



59-43 5968 per cent, iodine. 



59-90 per cent, iodine 



Hexyl iodide was also readily formed by passing hydriodic 

 acid into the pseudoxide, contained in a flask surrounded 

 by ice. The acid was readily absorbed, with the formation 

 of water ; and a heavy dark red liquid, but no free iodine, 

 separated out. The heavy oil evidently contained, in addi- 

 tion to the hexyl iodide, a body which underwent com- 

 plete decomposition, even in vacuo. The results which I 

 have stated as obtained by the action of hydriodic acid on 

 hexylene pseudoxide diifer somewhat from those obtained 

 by Wurtz (Ann. de Chem. (4), iii.), inasmuch as he ob- 

 tained a substance which contained 64*4 per cent, of iodine, 

 and which he considered to be a mixture of C 6 H IO . H 2 I 2 , 

 and (C 6 H IO H 2 )0 . HI. The following is perhaps the reac- 

 tion which takes place when fuming hydriodic acid acts 

 upon hexylene pseudoxide : — 



3 C 6 H ]2 0+ 4 HI= a C 6 H 13 . HI4-C 6 H { (° T H )*+H 2 0, 



C 6 H IO L '* being the body which undergoes decomposi- 

 tion on distillation. If this should be the reaction, the 

 discrepancy between Wurtz's results and mine may be 

 explained ; for he did not distil the product which yielded 

 64*4 per cent, of iodine, which very nearly resembles the 



