34 ^- DIVERS AND T. HAGA. 



along with potassium hydroxide (cf. Kaschig), but has little if any 

 action upon the sodium salt. 



Constitution. — Unity of oximidosidphonates and 

 sidphazotates. 



The constitution of the oximidosulphonates as sulphonic deriva- 

 tives of hydroxylamine follows from the fact of their formation by the 

 union of nitrite with sulphite, and from that of their hydrolysing in 

 stages into hydroxylamine and sulphate. From the account we have 

 given — and Fremy before us — of the conversion of the neutral into the 

 alkaline, and of the alkaline into the neutral sii Its, it might also be 

 accepted without hesitation that they are aJl the salts of one acid, 

 were it not for the dissent of Claus and of Raschig from this 

 conclusion. 



All the compounds described in this paper seem to us to be as 

 clearly salts of one acid as are the acid, neutral, and alkaline ortho- 

 phosphates all salts of one phosphoric acid. This acid, Fremy 's 

 Bulphazotic acid, is oximidosulphonic acid, a tribasic acid with the 

 constitutional formula : — 



HO-SOo 



i 



I 

 HO-SO. 



and unknown as the wholly hydrogen salt. Of tliis acid the salts 

 with neutral or slightly acid reaction are monohydrogen salts, and 

 those with three monad atoms of metal (or their equivalent) which we 

 have hitherto designated the more alkaline salts are normal salts. For 

 example : — 



/ON(803).,Ba 

 HONrSOaNa)., ; A'aON(SaNa)., ; r.a< 



