Thermodynamic Characteristics of Samarium and Europium Chlorides in Molten Alkali Metal Chlorides

2001 ◽  
Vol 56 (12) ◽  
pp. 837-840 ◽  
Author(s):  
Alena Novoselova ◽  
Vladimir Khokhlov ◽  
Vladimir Shishkin
Keyword(s):  
Gibbs Energy ◽  
Alkali Metal ◽  
Equilibrium Constants ◽  
Thermodynamic Characteristics ◽  
Redox Potentials ◽  
Alkali Metal Chlorides ◽  
Metal Chlorides ◽  
Cationic Composition ◽  
Salt Systems

Abstract The formal standard redox potentials of samarium (III)/(II) (E*Sm3+/ Sm2+) and europium (III)/(II) (E*Eu3+ /Eu2+) in molten alkali metal chlorides were measured potentiometrically against a reference chlorine electrode. The Gibbs energy changes and equilibrium constants for the reaction LnCl2(I) + ½ Cl2(g) ⇔ LnCl3(I) were calculated for the salt systems studied. The effect of the cationic composition of the melt-solvent on the above thermodynamic characteristics is also reported.

The effect of alkali metal chlorides and temperature on acid-hydrolysis residual pyrolysis products

2019 ◽  
Vol 137 ◽  
pp. 106-117 ◽  
Author(s):  
Qianqian Guo ◽  
Guanyi Chen ◽  
Zhanjun Cheng ◽  
Beibei Yan ◽  
Wenchao Ma ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Acid Hydrolysis ◽  
Alkali Metal Chlorides ◽  
Pyrolysis Products ◽  
Metal Chlorides

Reversible electrode potentials for formation of solid and liquid chlorozirconate and chlorohafnate compounds

1993 ◽  
Vol 71 (9) ◽  
pp. 1283-1289 ◽  
Author(s):  
G.J. Kipouros ◽  
S.N. Flengas
Keyword(s):  
Thermal Decomposition ◽  
Alkali Metal ◽  
Electrochemical Behaviour ◽  
Thermochemical Data ◽  
Dilute Solutions ◽  
Alkali Metal Chlorides ◽  
Metal Chlorides ◽  
Electrode Potentials ◽  
Standard Electrode Potentials

The standard electrode potentials for the formation of the pure solid and molten compounds Li2ZrCl6, Li2HfCl6, Na2ZrCl6, Na2HfCl6, K2ZrCl6, K2HfCl6, Cs2ZrCl6, and Cs2HfCl6 have been calculated from measured vapour pressures corresponding to their thermal decomposition at equilibrium and from available thermochemical data. Reversible potentials for the formation of Na2ZrCl6 and of K2ZrCl6 in solution according to the reaction[Formula: see text]where A is Na or K, have been calculated from available equilibrium vapour pressures as functions of the mole fractions of the alkali hexachlorocompounds. Standard potentials for the above reaction and "formal" potentials are also given. The latter are useful in predicting the electrochemical behaviour of dilute solutions of the hexachlorozirconates in alkali metal chlorides.

Evaluation of alkali metal chlorides and nitrates as column packins in gas-solid chromatogrpahy

1967 ◽  
Vol 30 ◽  
pp. 305-324 ◽  
Author(s):  
Robert L. Grob ◽  
George W. Weinert ◽  
Jospeh W. Drelich
Keyword(s):  
Alkali Metal ◽  
Alkali Metal Chlorides ◽  
Metal Chlorides
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