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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Erbium(III) oxide ： ウィキペディア英語版 Erbium(III) oxide |Section2= |Section3= |Section4= |Section8= }} Erbium(III) oxide, is synthesized from the lanthanide metal erbium. It was partially isolated by Carl Gustaf Mosander in 1843, and first obtained in pure form in 1905 by Georges Urbain and Charles James. It has a pink color with a cubic crystal structure. Under certain conditions erbium oxide can also have a hexagonal form. Erbium oxide is toxic when inhaled, taken orally, or injected into the blood stream in massive amounts. The effect of erbium oxides in low concentrations on humans over long periods of time has not been determined.〔(【引用サイトリンク】url=http://nautilus.fis.uc.pt/st2.5/scenes-e/elem/e06840.html )〕 == Reactions == Erbium metal tarnishes slowly in air. Erbium burns readily to form erbium (III) oxide: Formation of erbium oxide: 4 Er + 3 O2 → 2 Er2O3 Erbium oxide is insoluble in water and soluble in mineral acids. Er2O3 readily absorb moisture and carbon dioxide from the atmosphere.〔 It can react with acids to form the corresponding erbium(III) salts. Reaction with hydrochloric acid: Er2O3 + 6 HCl → 2 ErCl3 + 3 H2O 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Erbium(III) oxide」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.