2() ART. in. — T. H AC A : 



Triorthotoluenesulphohydroxy lamine, (C7H7SO2) 3NO. 



This substance was obtained by treating diorthotoluenesul- 

 phohydroxylanaine, in alcoholic solution, with an excess of nitrous 

 fumes, evolved from arsencous oxide and nitric acid of sp. gr. 

 1.32. Six grammes of diorthotoluenesulphohydroxylamine yielded 

 about 2i grammes of the compound. It forms small, almost 

 microscopic needles, which melt at 129è°C., and is almost insolu- 

 ble in cold alcohol, being only sparingly soluble even in boiling 

 alcohol. 



Found Calc. for Cj.H„,S,0,N 



Sulphur 19.98 19.41 



Nitrogen 3.07 2.83 



Diorthotoluenesulphimidej (CvHvSO.^^NH. 



This substance was prepared in exactly the same way as the 

 corresponding dibenzenesulphimide, by treating an alcoholic solu- 

 tion of diorthotoluenesulphohydroxylamine with sulphur dioxide. 

 To avoid the complications observed in the preparation of dibenzene- 

 sulphimide when the sulphur dioxide was not in a sufficiently 

 large excess, this was passed nearly to saturation, and the mixture 

 left for two hours, before the excess of sulphur dioxide was 

 removed by a current of air. On evaporating the solution on a 

 water-bath, diorthotoluenesulphimide separated out as a crystalline 

 ci'ust. This was recrystallised from hot water, when it separated 

 out in thick tables and short prisms. The preparation, when 



