
%0 Journal Article
%A Dack, MRJ 
%A Bird, KJ 
%A Parker, AJ 
%T Solvation of ions. XXV. Partial molal volumes of single ions in protic and dipolar aprotic solvents
%J Australian Journal of Chemistry
%D 1975/05/01
%V 28
%N 5
%P 955-963
%K 
%R https://doi.org/10.1071/CH9750955
%U https://www.publish.csiro.au/paper/CH9750955 
%X Partial molal volumes at 25° are reported for some 1 : 1 electrolytes, and for triphenylmethane, in dimethyl sulphoxide, N,N- dimethylformamide, acetonitrile, propylene carbonate, formamide and hexamethylphosphoramide. The assumption that &#916;V°tr(Ph4As+) = &#916;V°tr(BPh4-) was used to obtain ionic partial molal volumes of transfer from water to the non-aqueous solvents. Solvent compressibility appears to determine the partial molal volumes of non-electrolytes and large hydrophobic ions in solution. Values of &#916;V°tr for cations and anions are discussed in terms of ion-solvent interactions, solvent-solvent interactions and steric crowding of large solvent molecules around the ions. 
