OF ALIPHATIC COMPOUNDS. II 



solution mono-brom-acetone. Wilde ' investigated the 

 action of the electric spark on acetone vapor in 

 Torricelli's vacuum. Acetylene was formed in the 

 gas mixture and carbon was deposited on the sides of 

 the vessel. According to Maquenne * acetone vapor 

 is decomposed by the electric discharge into hy- 

 drogen, ethane, and carbon monoxide, a small quantity 

 of acetylene and carbon dioxide being formed. On 

 the other hand, Hemptinne* syntheticized both ace- 

 tone and aldehyde by passing a silent electric dis- 

 charge through a mixture of carbon monoxide and 

 ethane, the gases being kept cool by the use of a 

 freezing mixture. 



Isonitroso-acetone. Ahrens and Meissner 4 tried to 

 reduce this compound electrolytically to amido- 

 acetone. They, however, obtained dimethyl-pyra- 

 zine, ketine, C,H 8 N,, in small quantity. 



Acetyl-acetone. 6 Acetyl-acetone in an alcoholic 

 solution on electrolysis gave tetracetyl-^. 



THH ^ 



Acids. I UNIVERSITY 



The investigation of acids has beefr^much-^nlore 

 extensive than that of those classes of bodies which 

 have been thus far discussed. The conditions here 



1 Bull. soc. chim., [2] 5, 267. 



* Bull. soc. chim., 39, 306; ibid. t 40, 60. 



1 Bull. Acad. roy. Beige, [3] 34, 269. 



4 Chem. Ber., 30, 532. 



6 Ahrens, Handb. d. Cheoiie, p. 482 (1896). 



