CONTRIBUTION TO STUDY OF HYDROXYLAMINE. — MACKAY. 387 



Molecular depression of aniuioniuni hydroxide in solution :- 



Grams per lOOOcc, 



.081.. . 



.16078. 



.23937 



.31678. 



. 40500 . 



.90450. 

 1 . 35405 . 

 1.75865 



Normal. 



.002810, 

 .004586 

 ,006827. 

 ,009085 

 .01155 

 ,02580 . 

 ,08862 , 

 .05016 



Lowering. Molecular lowering. 



Specific equivalent conductivity^ of solutions of ammonia, 

 pota.ssium hydroxide and hydroxylamine, expressed in Kohl- 

 rausch's units : 



Number of gram eqcivalekts 

 PEK lOOOcc. 



10 



Specific equiv. coiid of NH.7 OH. 

 NH3 .... 

 KOH.... 



.0.3 .02 

 ,1 .05 .25 



,| 45.0105 2 



I I 



0.5 



.09 



1.27 



195.7 



The results obtained in the present paper may be summar- 

 ized as follows : 



(1). By the use of tin electrodes, the conductivity of solu- 

 tions of hydroxylamine has been more accuratel}^ determined 

 than hitherto. 



(2). The molecular conductivities show a minimum point 

 between the concentrations 2 and 10 normal. 



(3). The specific conductivity of pure hydroxylamine has 

 been determined. 



