﻿76 BACON AND FREER. 



obtained 0.9 gram benzoic acid, 1 gram methylpropylketone, some haloge- 

 nated oil, and some lrydroehloric acid. Tbe entire 2 grams is therefore 

 accounted for. Intermediate halogenated addition products were also 

 demostrated. 



Pure mesityloxide reacts so energetically with sodium that the products 

 may even take fire with explosive violence, the sodium compound is so 

 unstable that it can not be isolated. 



From the above considerations it is evident that the original descrip- 

 tions of sodium acetone remain unaltered. 14 



14 Since the above was written an article by Levi and Vogliera (Gazz. chim. 

 Ital. (1905), 35, I, 277) lias come to our attention. These investigators studied 

 the electrolysis of KSCN, KI and Nal in acetone solution, water being rigidly 

 excluded from their solutions. At the cathode sodium-acetone respectively 

 potassium-acetone separated as white substances. With water these gave acetone 

 and sodium or potassium hydroxides. The potassium-acetone gave 40.70 per cent 

 of potassium (calculated 40.02 per cent), and it dissociated, when placed in 

 water, into acetone, potassium and hydroxy! ions, the correct lowering of the 

 freezing point for a molecular weight of 96 was obtained (found 95.3). 



