TRANSACTIONS 



OF THE 



Jforba ,Scotian Institute of 



SESSION OF 1899-1900. 



I. ON THE RELATION OF THE VISCOSITY OF MIXTURES OF 

 SOLUTIONS OF CERTAIN SALTS TO THEIR STATE OF 

 IONIZATION. BY JAMES BARNES, B. A., Dalhousie 

 College, Halifax, N. S. 



(Communicated by Prof. J. G. MacGregor on December 15th, 1899 ) 



The present paper is the result of a piece of work undertaken 

 at the suggestion of Prof. MacGregor, for the summer vacation 

 of 1899, the object being to find out in the case of mixtures of 

 aqueous solutions of certain electrolytes with a common ion, 

 whether or not it is possible, by the aid of the dissociation con- 

 ception, to predict the viscosities of the mixtures, when sufficient 

 data as to the viscosities and conductivities of the constituent 

 solutions are available. 



The salts selected were sodium chloride, potassium chloride, 

 barium chloride, sodium sulphate, potassium sulphate, and 

 copper sulphate, the viscosities of simple solutions of these salts 

 having been determined by 1 Reyher and 2 Wagner, and that of 

 mixtures of them by 8 Kanitz, and extensive series of observa- 

 tions on the conductivity by Kohlrausch and by former students 

 of Dalhousie College, being available. As will be seen below I 

 found 4 Kohlrausch's values of the conductivity sufficient for my 

 purpose. 



'Ztschr. f. phys. Chemie, 2, 744, 1888. 

 * Ibid., 5, 31, 1890. 



3 Ibid., 22, 336, 1897. 



4 Kohlrausch u. Holborn : Leitvcrmogen der Elektrolyte, 1898, pp. 159, 160, tab. 2. 



PROG. & TRANS. N. S. INST. Sci.. VOL. X. TRANS. H. 



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