Английская Википедия:Europium(III) carbonate

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Шаблон:Chembox

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.[1] 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.[2] Other preparation methods include the thermal decomposition of europium(III) acetate[3] and the reaction of a suspension of europium(III) oxide in water and supercritical carbon dioxide.[4]

Chemical properties

Europium(III) carbonate is soluble in acid and releases carbon dioxide:[5]

Eu2(CO3)3 + 6 H+ → 2 Eu3+ + 3 H2O + 3 CO2

Europium(III) carbonate decomposes at high temperatures to form europium(III) oxide:

Eu2(CO3)3 → Eu2O3 + 3 CO2

References

Шаблон:Reflist

Шаблон:Europium compounds Шаблон:Carbonates

  1. Шаблон:Cite journal
  2. 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.
  3. Шаблон:Cite journal
  4. Yanagihara, N.; Vemulapalli, K.; Fernando, Q. Synthesis of lanthanide carbonates using supercritical carbon dioxide. Kidorui, 1991. 18: 136-137. ISSN: 0910-2205.
  5. Ошибка цитирования Неверный тег <ref>; для сносок wj не указан текст