Generally, when you melt a salt (CaCl2 @800deg C specifically) are the ions disassociated as in a solution or is molecular vibration simply great enough to not allow the formation of intermolecular bonds and the atoms are floating around still paired? This is probably a dumb question and my overwhelming instinct is the latter, anyone care to confirm? Also, will there be the potential for Chlorine gas to be produced to be exhumed from the molten salt, again my instinct is no, but at such high temperatures there might be the potential for the ionic bonds to be displaced in a collision and form Cl2? Enthalpy of formation of CaCl2 is -795.4 kJ/mol for a solid, I'll see if I can find it for a liquid and run the numbers for the reaction CaCl2(l) -> Ca(?) + Cl2(g). Would this reaction be accelerated if there was a galvanic cell taking place in the mix?