JOURNAL OF THE COLLEGE OF SCIENCE, IMPERIAL UNIVERSITY 

 TOKYO, JAPAN. 



VOL. XVII, ARTICLE 2. 



Nitrilosulphates. 



Bv 



E. Divers and T. Haga. 



History. — Nitrilosulphates wore discovered in 1845 by Fremy, 

 who named them sulpha id monates. Their sul phonic constitution 

 was made evident by Clans and Koch in 1869, and their nitrilic 

 constitution by Berglund in 1875, when they received the name of 

 nitrilosulphonates. Finally, Raschig rendered the constitution of 

 these salts still more certain in 1887. These chemists, it should 

 be mentioned, added nothing to the experimental facts concerning 

 the nitrilosulphates which Fremy had made known, but Clans and 

 Koch determined the nature of the ' sulphazidates,' salts derived 

 from Fremy's ' neutral sulphazotates ' by hydrolysis ; Raschig 

 proved the constitution of the last-named salts, which by sul- 

 phonation become the sulphammonates ; and Berglund established 

 the constitution of the ' snlphamidates ' into which the sulpham- 

 monates are transformed by hydrolysis ; all the experimental inter- 

 connections of these salts, here relied on, having been ascertained 



