IMIDES OF BENZENEDTSULPHONIC ACIDS. O 



Ü) 0.2616 gr. of the crystals from the solution iu acetone, on drying 

 at 100°, lost 0.0199 gr. 



Found Cal. for {CßH, (SOJ, NOH>, • iCsHa O 



Acetone 7.61 ^^ 7.60^ 



Estimations of nitrogen and snlpluir were made witli tlie 

 crystals containing acetone. 



c) Nitrogen. 



0.1374 gr. gave 6.8 c.c. of moist nitrogen at 25°, 751 m.m. 

 0.1604 „ „ 8.0 „ „ „ „ „ 23°, 756 „ 



15.51 „ 



Nitrogen found 



„ calculated 5.52 ,, 



d) Sulphur. 



0.1199 gr. gave 0.2214 gr. of barium sulphate. 



Sulphur found 25.36^ 



„ calculated 25.19 „ 



e) Molecular weight. 



It seldom happens that a divalent radical closes itself upon 

 the meta-positions. This led me to suspect that the group NOH 

 must be connected with two SO2 groups of different benzene rings 

 and that, consequently, the oxime must have a double formula. 

 In order to decide this point the molecular weight of the oxime 

 was determined by observing the elevation of the boiling point 

 of acetone solutions. 



Molecular weight found 452, 477, 485 



Calculated for HON J " i NOH 470 



f SOo . CcH, . SO2I 

 \S0, . C,H, . SOj 



