4 ART. 15,— TAMEMASA HAGA. 



formation of the acid of Fremy's potassium sulphazilate. His sug- 

 gestion is discussed on page 22 of this paper. 



In the detailed examination of Fremy's sulphazotised salts made 

 by Dr. Divers and the author, the results of which have been described 

 from time to time in this Journal, the sulphazilate and metasulph- 

 azilate were purposely reserved for separate treatment, because 

 they are distinguished from the other salts in being products of 

 oxidation. In the present paper the author endeavours to prove 

 (1) that the sulphazilate is an oxime-pcroxide (Scholl) or a peroxime f 

 (S0 3 K)oXO - OiS[(S03K) 2 , the first and only inorganic peroxime yet 

 known; (2) that the metasulphazilute is a triacylated hydroxylamine, 

 (SOsK^XC^SOsK), the only compound of this type having an establ- 

 ished normal constitution (all others, such as tribenzhydroxylamine, 

 being apparently of more complex constitution) ; and (3) that, conse- 

 quently the nitrogen, in both these sulphazotised salts is only triva- 

 lent, instead of being quinque valent. 



From among the several constitutional names which suggest 

 themselves for Fremy's provisional 'sulphazilate' and 'metasulphazi- 

 late,' that of pcroxylaminesulphonate for the former, and of hydroxyl- 

 aminetrisulphonate for the latter, have been adopted as preferable. In 

 consequence, it has been found advantageous in this connection to 

 call the parent salt hydroxylaminedisulphonate instead of the alternative 

 hydroximinosulphate, the name usually employed by Divers and the 

 author. It has also been found to be convenient to treat of the 

 hydroxy laminetrisulphonates before the peroxylaminesulphonates, 

 from which they are apparently always derived. 



Hydroxylaminetrisulphonates 

 (Metasulphazilates ; Trisulphoxyazoates). 



Potassium hydroxylaminetrisulphonate is most readily prepared 



