
%0 Journal Article
%A Weeks, IA 
%T Activity coefficients in some alkaline earth metal perchlorate-hydrochloric acid mixtures at 25&#176;
%J Australian Journal of Chemistry
%D 1967/11/01
%V 20
%N 11
%P 2367-2374
%K 
%R https://doi.org/10.1071/CH9672367
%U https://www.publish.csiro.au/paper/CH9672367 
%X Trace activity coefficients have been determined of both electrolyte components in the aqueous systems Mg(ClO4)2-HCl, Sr(ClO4)2-HCl, and Ba(ClO4)2-HCl at 25°. The systems are basically similar to the Ca(ClO4)2- HCl system but the agreement with Guggenheim?s1 theory of mixtures improves with increasing molecular weight of the 2 : 1 electrolyte. Calculations based on the assumption that the linear form of Harned?s2 rule applies to both components are particularly in error for the Mg(ClO4)2-HCl system. 
