Molten Lithium Carbonate—Sodium Carbonate—Potassium Carbonate Eutectic: The Reaction of Four Lanthanide(III) Chlorides

Cerium(III) chloride reacted with carbonate in the solid state under a carbon dioxide atmosphere, to form cerium(IV) oxide, while europium(III) chloride, praseodymium(III) chloride and lanthanum(III) chloride underwent anion exchange and partial decomposition to give the dioxymonocarbonates initially. The latter three compounds took up carbon dioxide as the temperature increased, the amount varying in accordance with the basicity of the cations ( = 20 border= 0 style= vertical-align:bottom width= 8 alt= View the MathML source title= View the MathML source src= http://origin-ars.els-cdn.com/content/image/1-s2.0-0040603185853703-si1.gif \u3e , eight= 20 border= 0 style= vertical-align:bottom width= 8 alt= View the MathML source title= View the MathML source src= http://origin-ars.els-cdn.com/content/image/1-s2.0-0040603185853703-si2.gif \u3e and 1 mole of CO2 per mole of Ln2O2CO3, respectively), as did the temperatures of reaction