Europium(III) carbonate is an inorganic compound with the chemical formula Eu2(CO3)3.
Preparation Europium(III) carbonate can be obtained by mixing and heating an aqueous solution of ammonium carbonate and europium(III) chloride. A saturated carbon dioxide ammonium carbonate solution (obtained from the reaction of hydrochloric acid and ammonium carbonate solution) can also precipitate europium carbonate from a europium salt solution.Perkovskaya, Yu. B.; Anoshina, N. P.; Sukhanova, I. M. Rare earth carbonates. Metody Polucheniya Khimicheskikh Reaktivov i Preparatov, 1967. 16: 104-109. ISSN: 0539-5143. Other preparation methods include the thermal decomposition of europium(III) acetate and the reaction of a suspension of europium(III) oxide in water and supercritical carbon dioxide.Yanagihara, N.; Vemulapalli, K.; Fernando, Q. Synthesis of lanthanide carbonates using supercritical carbon dioxide. Kidorui, 1991. 18: 136-137. ISSN: 0910-2205.
Chemical properties Europium(III) carbonate is soluble in acid and releases carbon dioxide:
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Europium(III) carbonate decomposes at high temperatures to form europium(III) oxide:
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