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Measurement of the standard potential of the Ce/Ce3 +couple in (lithium chloride + potassium chloride) eutectic melt

✍ Scribed by H.N. Jena; Tom Matthews; T. Subramanian

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 337 KB
Volume: 28
Category: Article
ISSN: 0021-9614
DOI: 10.1006/jcht.1996.0020

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✦ Synopsis

The standard electrochemical potential of the Ce/Ce 3+ couple in fused (lithium chloride + potassium chloride) eutectic was measured as a function of temperature in the range 673 K to 773 K by a high-temperature galvanic cell technique using the reversible concentration cell: Ta,Ce>x(CeCl3) + (1-x)(0.59 LiCl + 0.41 KCl)=y(AgCl) + (1-y)(0.59 LiCl + 0.41 KCl)>Ag,Ta. The molar Gibbs free energy of formation of CeCl3 and the activity coefficient of CeCl3 at infinite dilution of CeCl3 in the (lithium chloride+potassium chloride) eutectic melt were calculated from the e.m.f. results and auxiliary information from the literature. The results obtained agree satisfactorily with the reported values.

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