ISSN:
1572-8927
Schlagwort(e):
Activity coefficients
;
osmotic coefficients
;
aqueous solution
;
electrolytes
;
liquid membranes
;
membrane electrodes
;
multicharged electrolytes
;
hexacyanocobaltate (III) salts
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
Notizen:
Abstract The activity coefficients of K3[Co(CN)6], Mg3[Co(CN)6]2, and Ca3[Co(CN)6]2,are examined. The results highlight close similarity with the correspondinghexacyanoferrate (III) salts. On dilution, K3[Co(CN)6], like K3[Fe(CN)6], approachesthe limiting law from the upper side, while Mg3[Co(CN)6]2 and Ca3[Co(CN)6]2tend to the limiting law from the opposite side, like Mg3[Fe(CN)6]2,Ca3[Fe(CN)6]2, Sr3[Fe(CN)6]2, and Ba3[Fe(CN)6]2. Both kinds of behavior agreewith theory for a model of hard spheres bearing electric charges +1 and −3 or+2 and −3, respectively. The paramater values of the Pitzer equation for activityand osmotic coefficients are reported.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1023/A:1005180900109
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