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Europium dichloride can be produced by reducing europium trichloride with hydrogen gas at high temperature: [4] 2 EuCl 3 + H 2 → 2 EuCl 2 + 2 HCl. If dry europium trichloride reacts with lithium borohydride in THF, it can also produce europium dichloride: [5] 2 EuCl 3 + 2 LiBH 4 → 2 EuCl 2 + 2 LiCl + H 2 ↑ + B 2 H 6 ↑
Europium(II) sulfate is the sulfate of divalent europium, which can be obtained by electrolysis of europium sulfate solution with mercury as the cathode, or by reducing europium(III) chloride with zinc amalgam, and then reacting with sulfuric acid. [50]
Otherwise, the main chalcogenides are europium(II) sulfide (EuS), europium(II) selenide (EuSe) and europium(II) telluride (EuTe): all three of these are black solids. Europium(II) sulfide is prepared by sulfiding the oxide at temperatures sufficiently high to decompose the Eu 2 O 3: [41] Eu 2 O 3 + 3 H 2 S → 2 EuS + 3 H 2 O + S
Europium chloride may refer to: Europium(III) chloride (europium trichloride), EuCl 3; Europium dichloride (europium(II) chloride), EuCl 2 This page was last edited ...
Europium(III) chloride is an inorganic compound with the formula EuCl 3. The anhydrous compound is a yellow solid. Being hygroscopic it rapidly absorbs water to form a white crystalline hexahydrate , EuCl 3 ·6H 2 O, which is colourless.
Europium(II) sulfide is the inorganic compound with the chemical formula EuS. It is a black, air-stable powder . Europium possesses an oxidation state of +II in europium sulfide, whereas the lanthanides exhibit a typical oxidation state of +III. [ 1 ]
Europium(II) fluoride is a bright yellowish solid with a fluorite structure. [3]EuF 2 can be used to dope a trivalent rare-earth fluoride, such as LaF 3, to create a vacancy-filled structure with increased conductivity over a pure crystal.
Europium(II) oxide is a violet compound as a bulk crystal and transparent blue in thin film form. It is unstable in humid atmosphere, slowly turning into the yellow europium(II) hydroxide hydrate and then to white europium(III) hydroxide. [3] EuO crystallizes in a cubic sodium chloride structure with a