232 DIVEKS & HAGA : IDENTIFICATION AND CONSTITUTION OF 



hot concentrated nitrite solution containing alkali. To 100 cc. 

 water there were present 45^ /o grm. nitrite and 1% grm. potassium 

 hydroxide ; for 66 mol. nitrite there were dissolved 10 mol. 

 anhydrous normal hydroximidosulphate. But for the salt being 

 in beautiful asbestus-like fibres, there was nothing to distinguish 

 it from the jelly and the wax-like 7}ietasulphazate, which, therefore, 

 we do not hesitate to class as a nitrito-hydroximidosulphate. 



Basic sulphazolaie, which Fremy considers next, has been 

 shown by us already [loc. cit.) to be the 5/6 normal hydroximi- 

 dosulphate, and not the salt of a distinct acid, the sulphazotic. 

 It is liable to contain a small excess of potassium when crys- 

 tallised from a strongly alkaline solution. x\ solution of the 

 normal salt readily deposits it, as does also that of the nitrite 

 compound of the normal salt. 



Neutral sulphazotate was shown by Raschig to be the 2/3 

 normal hydroximidosulphate. The potassium sulphazotates were 

 distinguished by Fremy from the salts previously described by 

 him by their ability to form other sulphazotates by double de- 

 composition. Fremy's analytical results in the case of the 7ieu- 

 tral sulphazotates are hopelessly out of accord with its constitution 

 and properties, though those for the basic sulp)hazotate are satis- 

 factory enough. 



Sulp)hazidate, produced by the hydrolysis of the sulphazotate, is 

 hydroxyamidosulphate (Claus). Sulphazilate and metasulphazilate, 

 oxidation products oi sulphazotate are 0N(S0oK)2 and 0N(S03K)o, 

 and have been studied by Claus, Raschig, and Hantzsch. 



31etasulphazotate. — Sometimes Fremy got a salt in the form 

 of spangles {paillettes), in appearance like minute crystals oî basic 

 sulphazotate, but differing from these in not being hard under pres- 

 sure. This salt he named, therefore, metasulphazotatc. According 



