ORNL-1816 - the Molten Salt Energy Technologies Web Site
ORNL-1816 - the Molten Salt Energy Technologies Web Site
ORNL-1816 - the Molten Salt Energy Technologies Web Site
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Subsequent reports will be concerned with some<br />
quantitative aspects of subjects treated qual itatively<br />
in this report, and with Equilibria II and Ill,<br />
and, hence, with oxidation-reduc<br />
including mass transfer.<br />
A large percentage<br />
liquid systems can be classified as acid-base analog<br />
reactions or as on-reduction reactions, In<br />
most systems t re of <strong>the</strong> solvent controls<br />
<strong>the</strong> acid-base analog reaction, while in oxidationreduction<br />
reactions <strong>the</strong> solvent usually plays a<br />
minor role. On <strong>the</strong> o<strong>the</strong>r hand, oxidation-reduction<br />
reactions in fused hydroxides are related to acidbase<br />
equilibria in at least three ways, First, acidbase<br />
reactions depend on Equilibrium I and oxidation-reduction<br />
reactions depend on Equilibrium II,<br />
Equilibrium Ill. Second,<br />
ent can stabilize higher<br />
Is through solvolytic reaction.<br />
Third, in some cases <strong>the</strong> kinetics of <strong>the</strong><br />
hydrogen replacement reaction in fused sodium hydroxide<br />
appears to be dependent on acid-base equilibria<br />
in a way analogous to similar replacement<br />
reactions in liquid ammonia, Thus, a study of<br />
acid-base equilibria in fused hydroxides is a necessary<br />
prelude to a more interesting study of <strong>the</strong><br />
oxidation-reduction reactions whic<br />
in <strong>the</strong> corrosion<br />
In order to foc<br />
acid-base analog reactions, only Equilibrium I will<br />
This treatment is valid at lower<br />
in <strong>the</strong> absence of strong oxidizing<br />
or reducing - agents, -<br />
PERIOD ENDING DECEMBER 70,1954<br />
This “inert” behavior of <strong>the</strong> cations in ac:id-base<br />
processes stems from tw actors: first, <strong>the</strong> large<br />
ionic radius and small charge of <strong>the</strong> cations and,<br />
second, <strong>the</strong> exceptionally small ionization energy<br />
of <strong>the</strong> parent atoms.<br />
Solvent-System Concept. In terms of <strong>the</strong> solvent-<br />
system concept first introduced by Franklin7 for<br />
liquid ammonia and subsequently applied by<br />
Jander8 to a variety of liquids, it is clear that<br />
Eq. 2 fulfills <strong>the</strong> formal requirements for CI water-<br />
like acid-base equilibrium and, hence, that <strong>the</strong><br />
fused alkali-metal hydroxides may be properly<br />
considered as acid-base solvent systems.<br />
The remainder of this report is concerned with<br />
a determination of <strong>the</strong> types of reaction