372 



Mr. Schorlemmer on the Hydrocarbons 



[May 14, 



Boiling-point. 



Observed. Calculated. 



CH3 CH3 



\ / 

 \/ 

 CH 

 I 



CH,. 



Diamyl ....C^oH,, = | ' 158° 158° 



I 



CH, 

 CH 



CH3 CH3 



Ath group. Hydrocarbons in which one atom of carbon is combined 

 with four other carbon atoms. — Of this group only one member is known, 

 namely carbdimethyldiethyl, which boils at 86°. 



It thus appears that from the boiling-point of a hydrocarbon of the 

 series C^^H2ra+2 conclusions may be drawn concerning its constitution, just 

 as in the series of aromatic hydrocarbons Further researches must 

 show whether the law which I have pointed out in this paper is a general 

 one. 



IV. " Uesearches on the Hydrocarbons of the Series C„ H2„+2- — 

 No. V.^^ By C. Schorlemmer. Communicated by Professor 

 G. G. Stokes, Sec. R.S, Received May 7, 1865. 



Oxidation Products. 

 In a former communication f I have shortly described the action of dif- 

 ferent oxidizing agents upon some of the saturated hydrocarbons ; the fol- 

 lowing paper contains some further results which I have since then obtained. 

 One of the most striking properties of these compounds is, that they are 

 with the greatest difficulty acted upon by any oxidizing substance in the 

 cold. On heating them, hov/ever, a reaction sets in, and either they are 

 completely burnt up to carbonic dioxide and water, or other oxidation pro- 

 ducts besides those two are formed in comparatively small quantities ; 

 thus chromic acid produces some acetic acid. Fuming nitric acid, which 

 in the cold shows no action whatever, even if left in contact with one of 

 these hydrocarbons for months, acts rather violently on gently heating ; 

 acid of the specific gravity 1*4 acts in a similar way, and produces the same 

 products, but the reaction is much less violent. The apparatus which I 



* Compare, about the boiling-points of the aromatic hydrocarbons, the elaborate paper 

 of Kopp in Ann. der Chem. und Pharm. vol. v. (Supplement) p. 315. 

 t Proceedings of the Royal Society, vol. xvi. p. 38. 



