Английская Википедия:Europium(II) hydroxide

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Europium(II) hydroxide is an inorganic compound, with the chemical formula of Eu(OH)2. It can exist as the dihydrate Eu(OH)2·H2O.

Preparation

The monohydrate of europium(II) hydroxide can be obtained by the reaction of metal europium and 10 mol/L sodium hydroxide solution.[1] There are some sources that use europium(III) chloride as a raw material, and prepare it by reacting the Jones reductor with sodium hydroxide solution.[2]

Properties

Europium(II) hydroxide belongs to the orthorhombic crystal system, a=6.701 ± 0.002, b=6.197 ± 0.002, c=3.652 ± 0.001 A.[1] It thermally decomposes to form europium(II) oxide (EuO); it is readily oxidized to europium(III) hydroxide in air.[3]

References

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Шаблон:Europium compounds Шаблон:Hydroxides

  1. 1,0 1,1 Ошибка цитирования Неверный тег <ref>; для сносок HB не указан текст
  2. Garton, G.; Hukin, D. A. Studies of some europium(II) compounds. Proc. Conf. Rare Earth Res., 3rd, Clearwater, Florida, 1964. (1963) 3-10.
  3. 无机化学丛书 第七卷 钪 稀土元素. 科学出版社. pp 202, 204-205