Electrochemical studies of zirconium and hafnium in alkali chloride and alkali fluoride-chloride molten salts

1990 ◽  
Vol 20 (1) ◽  
pp. 77-84 ◽  
Author(s):  
Chen Guang-Sen ◽  
Masazumi Okido ◽  
Takeo Oki
Keyword(s):  
Molten Salts ◽  
Electrochemical Studies ◽  
Alkali Chloride

Electrochemical Studies on Ionic Nitride Solutions in Molten Salts

1979 ◽  
Vol 126 (2) ◽  
pp. 248-251 ◽  
Author(s):  
A. Bonomi ◽  
M. Hadate ◽  
F. Breda
Keyword(s):  
Molten Salts ◽  
Electrochemical Studies

Ab Initio Estimation of NbF−6 , NbClF2−6 , and NbF2− 7 Complexes Stability in Alkali Chloride Melts

2010 ◽  
Vol 65 (11) ◽  
pp. 1020-1026 ◽  
Author(s):  
Vyacheslav G. Kremenetsky ◽  
Sergey A. Kuznetsov ◽  
Olga V. Kremenetskaya ◽  
Veniamin V. Soloviev ◽  
Lyudmila A. Chernenko ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Relative Stability ◽  
Quantum Chemical ◽  
Molten Salts ◽  
Alkali Chloride ◽  
Chlorine Anion ◽  
The Third ◽  
Chloride Melts ◽  
Stable Particles ◽  
Particle Geometry

Quantum-chemical calculations of the parameters of the nM+・NbClF2−6 type particles have been performed, where M stands for Na, K, Cs and n = 0 - 6. Under certain conditions such particles may exist in melts of alkali metal chlorides.Within the framework of this approximation, compositions for themost stable particles in molten salts were obtained. Relative stability of the particles containing the NbF−6 , NbClF2−6 , and NbF2−7 complexes has been calculated. Energies and some other characteristics of the electron structure and the particle geometry structure were determined depending on the n and M values. For estimation of the third sphere’s influence, the systems (M2NbF7 +8MCl) and (M2NbF7 +15MCl) are surveyed. The chlorine anion enters the first coordination sphere in the Nasystem only, i. e. in this system the true complex NbClF3−7 is formed.

In Situ Spectroscopy and Spectroelectrochemistry of Uranium in High-Temperature Alkali Chloride Molten Salts

2008 ◽  
Vol 47 (17) ◽  
pp. 7474-7482 ◽  
Author(s):  
Ilya B. Polovov ◽  
Vladimir A. Volkovich ◽  
John M. Charnock ◽  
Brett Kralj ◽  
Robert G. Lewin ◽  
...  
Keyword(s):  
High Temperature ◽  
Molten Salts ◽  
In Situ Spectroscopy ◽  
Alkali Chloride

Electrochemical studies of titanium ions (Ti4+) in equimolar KClNaCl molten salts with 1 wt% K2TiF6

1987 ◽  
Vol 32 (11) ◽  
pp. 1637-1642 ◽  
Author(s):  
Chen Guang-sen ◽  
Masazumi Okido ◽  
Takeo Oki
Keyword(s):  
Molten Salts ◽  
Electrochemical Studies

Electrochemical Studies of Sodium Chloride as a Lewis Buffer for Room Temperature Chloroaluminate Molten Salts

1990 ◽  
Vol 137 (12) ◽  
pp. 3865-3869 ◽  
Author(s):  
Tammy J. Melton ◽  
Jennifer Joyce ◽  
J. T. Maloy ◽  
Jeffrey A. Boon ◽  
John S. Wilkes
Keyword(s):  
Sodium Chloride ◽  
Molten Salts ◽  
Room Temperature ◽  
Electrochemical Studies

Electrochemical studies of molten salts. III. E.M.F.'s of concentration cells with transference and diffusion potentials for PbCl2+CsCl mixtures

1968 ◽  
Vol 21 (11) ◽  
pp. 2649
Author(s):  
H Bloom ◽  
AJ Easteal
Keyword(s):  
Mole Fraction ◽  
Molten Salts ◽  
Ionic Species ◽  
Electrolyte Composition ◽  
Lead Chloride ◽  
Electrochemical Studies ◽  
Diffusion Potentials ◽  
Straight Lines ◽  
And Diffusion ◽  
Concentration Cells

The e.m.f.'s of concentration cells with transference containing PbC12 + CsCl molten mixtures have been measured as functions of temperature and electrolyte composition. Graphs of cell e.m.f. against temperature are sets of intersecting straight lines, as are graphs of cell e.m.f. against the negative logarithm of the mole fraction of PbCl2. Diffusion potentials for junctions between pure molten PbCl2 and molten PbCl2 + CsCl mixtures have been determined, as functions of temperature and mixture composition. The results are interpreted to indicate the existence of complex lead-chloride ionic species in the mixtures.

scholarly journals Speciation of Rhenium in Chloride Melts: Spectroscopic and Electrochemical Study

2008 ◽  
Vol 63 (5-6) ◽  
pp. 371-376 ◽  
Author(s):  
Danil A. Danilov ◽  
Vladimir A. Volkovich ◽  
Boris D. Vasin ◽  
Denis E. Aleksandrov ◽  
Ilya B. Polovov ◽  
...  
Keyword(s):  
Molten Salts ◽  
Diffuse Reflectance ◽  
Diffuse Reflectance Spectroscopy ◽  
Oxidation States ◽  
Alkali Chloride ◽  
Chloride Melts ◽  
Current Densities ◽  
Alkali Chlorides ◽  
First Time ◽  
Kinetics Of

Speciation of rhenium in high-temperature alkali chloride-based melts was studied using electronic absorption and IR spectroscopy of molten salts and diffuse reflectance spectroscopy of quenched melts. Rhenium was added to the melts by anodic dissolution of the metal (at anodic current densities of 0.005 - 0.05 A/cm2), by reacting Re and ReO2 with Cl2 and HCl, and by dissolving K2[ReCl6]. The melts included 3LiCl-2KCl and NaCl-2CsCl eutectics, an NaCl-KCl equimolar mixture, and pure NaCl, KCl and CsCl between 450 and 850 ◦C. Rhenium was present in the melts as Re(IV) hexachloro-ions, [ReCl6]2−; no evidence of species containing rhenium in oxidation states below four was obtained. The kinetics of [ReCl6]2− disproportionation in molten alkali chlorides were investigated, and the IR spectra of [ReO4]− ions in molten CsCl-CsI and CsI were measured for the first time.

Sign in / Sign up

Export Citation Format

Share Document