SULPHURIC ACID ON DIALLYL. 11 



(2) Boiling-point 240°-245°. 



(a) 0*2187 substance gave 0-7001 carbonic acid, and ©'2446 water. 



(b) 0-1545 ,, „ 0-4946 „ „ 0-1713 „ 



Found. Calculated for 



(a) (b) C 6 H 10 . 



C 87-30 87-30 87-8 



H I242 12*31 12*2 



99-72 99"6i ioo-o 



(3) Boiling-point 275°-285°. 



01760 substance gave 0-5612 carbonic acid, and 02029 water. 



Calculated for 

 Found. C 6 H 10 . 



C 86-96 8 7 -8 



H I2-8l I2 - 2 



99-77 IOO'O 



No. 3 attacked sodium slightly, although it had been 

 distilled over it several times ; hence it is probable that its 

 non-agreement with the calculated result was owing to 

 admixture with an oxygen compound. From the above 

 analyses and boiling-points it is probable that at least two, 

 and possibly three, polymers of diallyl are formed by the 

 the action of sulphuric acid upon it. I had not, however, 

 a sufficient quantity of the hydrocarbons to obtain satis- 

 factory vapour- density determinations, which would at 

 once have settled the point. It is nevertheless very pro- 

 bable that No. 1 consists of two molecules of diallyl con- 

 densed into one, and that it has the formula C JZ H zo ; for 

 Schorlemmer (Proc. Boy. Soc. xv. 133), by the action of 

 sulphuric acid on hydrocarbons boiling below 120 from 

 cannel oil, obtained one which boiled at 210 , and the 

 vapour-density of which showed that its formula was 

 C IZ H i0 . 



Action of Bromine. — Bromine was allowed to drop very 

 slowly into the hydrocarbon boiling at 240°-245°, which 

 was contained in a test-tube kept cool by being surrounded 



