230 DIVERS & HAGA : IDENTIFICATION AND CONSTITUTION OF 



by having little tendency to hydrolyse and by at once evolving 

 some nitric oxide when its solution was mixed with a dilute acid. 

 Water decomposed the sulphazite, but into what products was not 

 ascertained. 



We have sufficiently realised Fremy's expectations that his 

 sulphazite might directly result from sulphonating the nitrite with 

 subsequent addition of alkali. The substance obtained in this 

 way did not differ greatly in composition from his : 



Potassm. Sulpliur 



Fremy's salt, .38.1G 16.27 per cent. 



D. & H's salt, 3G.94 1C..37 „ 



and agreed with it in chemical properties, so far as is known. 

 At the same time it was indistinguishable from a compound of 

 nitrite with 5/6 normal hydroximidosulphate, and has been de- 

 scribed by us as such in the preceding paper (p. 218) in which 

 it stands as the third of these double salts and in which its 

 preparation is given. Other experiments of various kinds have 

 yielded us such ' mammillated crusts' as Fremy got, which, 

 though only in rough agreement in percentage composition with 

 his sulphazite, behaved like it and proved to be impure double 

 salts of nitrite w^ith o/ß normal or more nearly normal hydrox- 

 imidosulphate. We are therefore convinced that his sulphaz- 

 ite wns only such a double salt. 



Metasulphazate'"'' — In Fremy's experience it sometimes hap- 

 pened, when passing sulphur dioxide into solution of nitrite and 

 alkali of a concentration intermediate to that giving sul2:)hazate 

 and that giving basic sulphazotale, the solution set to a starch-like 

 jelly instead of crystallising. He obtained a similar jelly by cooling 



* Often, misprinted metasulphazolate in the French original, but not in the German 

 translation. 



