ETHYL AMMONIUMSULPHITE. 201 



In order to get back the salt in the solid state, the solution 

 was poured, in portions suitable for analysis, into small flasks 

 of ether, freshly distilled from sodium. The two liquids did 

 not at first mix, but by gentle rotation the sulphite solution 

 coated the flask and crystallised on its walls, while much 

 sulphur dioxide escaped. On now pouring ofl' the ether and 

 washing the crystals with more ether, the salt dried rapidly 

 in the desiccator and was then weighed in the same flask. 

 The ether left no residue on evaporation. 



The analysis of the salt was simple. Distillation with alkali 

 gave the ammonia and alcohol, which were received in volume- 

 tric acid. After titrating for ammonia, the neutral distillate was 

 again distilled, and the specific gravity and weight of the new 

 distillate taken in order to determine the quantity of alcohol. 

 The alkali sulphite in the distilling flask was heated in a 

 pressure tube with hydrochloric acid and again rendered alka- 

 line and distilled, in order to be certain that no amidosulphate 

 had been formed, which was in fact the case. The sulphur 

 dioxide was determined in a separate portion of the salt by 

 oxidising, first, with bromine and alkali and, then, with potas- 

 sium chlorate and hydrochloric acid, and precipitating sul- 

 phate by barium chloride. The quantities of salt serving for 

 the analyses were about 2 grams each. 



C2H5(NHJS03 : alcohol ; 36.22 ; ammonia, 13.38 ; snlpli. diox., 50.39, percent. 

 Found: „ 35.87; „ 13.35; „ 49.99, „ 



Ethyl ammonium sulphite is crystalline and sublimes un- 

 changed almost completely when heated in a dry tube and 

 without blackening. It is decomposed violently by strong 

 sulphuric acid and also without blackening. Acids at once set 



