M. Bauer on Benylene. 455 



The acid is remarkable for great stability ; when heated above 

 100°, it sublimes in very beautiful lustrous crystals. It is a 

 strong acid, and forms with ammonium and barium easily soluble 

 crystallized salts. 



When the acid is treated with hydriodic acid, it is decomposed 

 with liberation of iodine, and separation of a hydrocarbon which 

 is probably cymole, formed in accordance with the equation 



G,0 ^4|9 4 + 10HI = I 10 + 4H 2 O + G 10 H 14 . 



Bauer has made* another addition to the series of bodies iso- 

 meric with acetylene, which he had already enriched by the dis- 

 covery of rutylene *j\ 



With a view to obtaining oxide of triamylene, he prepared the 

 bromide of triamylene, G 15 H 30 Br 2 , and acted with this body on 

 acetate of silver for some days at the temperature of 100°. 

 The mass having been exhausted with ether, the ethereal solution 

 was evaporated and the residue distilled in an oil-bath. This 

 distillate was treated with solid powdered caustic potash and 

 again distilled. The product thus obtained consisted of two 

 layers: the lower one was water; the upper layer was subjected 

 to fractional distillation, by which it was found to consist of a 

 liquid distilling between 230° and 240° C. On analysis this 

 body proved to be a new hydrocarbon, which has the formula 

 G 15 H 28 . Bauer names it benylene, to denote both its relation to 

 the acetylene series and also to Walter's benic acid, to which it 

 stands in the same relation as rutylene to rutic acid, and acety- 

 lene to acetic acid. This new hydrocarbon stands in the same 

 relation to triamylene as rutylene to diamylene, and as valerylene 

 to amylene. For we have 



qs H"> 



G $ H 10 O 2 



G 5 H 8 



Amylene. 



Valerianic acid. 



Valerylene 



G 10 H 20 



£1O H 2O02 



£10 h^ 



Diamylene. 



Rutic acid. 



Rutylene. 



G 15 H 30 



G 15 H 30 G 2 



G 15 H 28 . 



Triamylene. 



Benic acid. 



Benylene. 



Benylene is a colourless liquid with but little odour, very vis- 

 cous, and lighter than water. At low temperatures it combines 

 with bromine without disengagement of hydrobromic acid. 



Its formation may be explained by the assumption that, by the 

 action of bromide of triamylene on acetate of silver, there are 



* Liebig's Annalen, February 1866. 

 t Phil. Mag. S. 4. vol. xxx. p. 356. - 

 2H2 



