16 AKT. 14. — T. SUZUKI : THE OXIMES AND 



The oxime decomposes on heating with an evolution of gas 

 bubbles, but without charring ; the decomposition point is 82°. 

 On reducing it with sulphur dioxide a crystallisable acidic imide 

 was obtained, which gave sparingly soluble alkaline salts. But 

 no analysis was attempted. 



The oxime of o~benzenedisulphonic acid was obtained in 

 colourless prismatic crystals from its solution in acetone. Its 

 decomposition point was very low and found to be about 45°. 

 It was, therefore, impossible to recrystallise this compound from 

 boiling acetone. On reduction it gave an acidic imide, but the 

 substance was not analysed. 



Both oximes are insoluble in water. They are readily de- 

 composed by ammonia, with a brisk evolution of gas bubbles. 



It can not be doubted that o-benzenedisulphonic acid gives 

 tlie corresponding oxime and imide, but as no analyses were 

 made it will be necessary to renew the investigation with larger 

 quantities of the materials. 



V. Action of Ammonia and Fuming Nitric Acid 

 upon the Oximes. 



Aqueous ammonia acts violently upon the sulphoximes de- 

 scribed above with evolution of nitrogen and formation of the 

 corresponding sulphinic acids, while a good deal of heat is liberated 

 during tlie reaction. Evolution of nitrogen by the action of am- 

 monia upon benzenesulphohydroxylamine CoHg • SOq • HNOH was 

 observed by Piloty (Ber., 29, 1559 ; 1896), but without any 

 special study of that reaction. The action of ammonia upon 

 m-benzenedisulphoxime may be considered to be a typical reaction 

 of an aromatic sulphoxime, and may be formulated as follows : 



