Contribution to the Study of Hydroxy lamine and its 

 Salts^ — By W. H. Ross, B. Sc, Dalhousie University 

 Halifax, N. S. 



(Commiinicotcd bij Pro/f.s-so?' E. Mackay, nth April, 1901,.) 



On account of the difficulty and expense experienced in pre- 

 paring the inorganic compounds of hj^droxylamine, they have 

 not received much attention until recently. The organic com- 

 pounds of hydroxy lamine, however, being easier of preparation 

 have been pre parked in considerable numS^ers, and rather care- 

 fully studied. By the method of Divers and Haga^ the cost 

 and difficulty in preparing the inorganic salts of hydroxylamine 

 have been considerably reduced Notwithstanding this, how- 

 ever, their preparation in a chemically pure condition is still 

 attended with considerable difficulty. This is due to the fact that 

 they are for the most part unstable when heated much above the 

 ordinary temperature, and also that, like sodium salts, hydroxy- 

 lamine salts do not give a precipitate with any of the ordinary 

 inorganic reagents. 



The analogy which hydroxylamine has to both water and 

 ammonia makes it difficult to predict which it would resemble 

 the more in its physico-chemical properties. Accordingly, at the 

 suggestion of Dr. E. Mackay, I have undertaken the prepara- 

 tion of hydroxylamine and its principal inorganic salts, with a 

 view to studying especially their electrical conductivities. The 

 results which I have obtained on following out this suggestion 

 form the subject matter of this paper. 



Preparation of Hydroxylamine Sulphate. 

 The preparation of hydroxylamine sulphate was used as the 

 starting point in the preparation of all the other compounds of 



' It is intended that henceforth paperi^ embodying researches carried out in the 

 laboratorie-; of Dalhousie College, eLther by students or by members of the staff shall, 

 when published in these Transactions, appear with the "general title, "Contributions 

 from the Science Laboratories of Dalhousie University." 



- Journ. Chem. Soc. (London). 69, 1665 (1896). 



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