Determination of the activities of cobalt and nickel orthosilicates in { xCo 2SiO4 + (1 − x) Ni2SiO 4} using a solid-state galvanic cell method

The {xCo2SiO4+ (1 −x)Ni2SiO4} solid solutions were studied at the temperatures of (1073, 1173 and 1273) K by solid-state galvanic cells involving β′′ -alumina electrolytes conducting cobalt and nickel divalent ions, respectively. The activities of both components of the solid solution were determine...

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Veröffentlicht in:	The Journal of chemical thermodynamics 2002-08, Vol.34 (8), p.1151-1156
Hauptverfasser:	ROG, G, KOZŁOWSKA-ROG, A
Format:	Artikel
Sprache:	eng
Schlagworte:	activities in { x Co 2SiO 4 + (1 − x )Ni 2SiO 4} Chemical thermodynamics Chemistry Exact sciences and technology General and physical chemistry Mixtures solid-state galvanic cells Thermodynamic properties β′′ -alumina electrolytes
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Beschreibung
Zusammenfassung:	The {xCo2SiO4+ (1 −x)Ni2SiO4} solid solutions were studied at the temperatures of (1073, 1173 and 1273) K by solid-state galvanic cells involving β′′ -alumina electrolytes conducting cobalt and nickel divalent ions, respectively. The activities of both components of the solid solution were determined directly from the e.m.f. measurements. The solutions exhibited positive deviations from Raoult’s law and could be characterized as regular solutions.
ISSN:	0021-9614 1096-3626
DOI:	10.1006/jcht.2002.0971