单词 | yttria |
释义 | yttria Chem.|ˈɪtrɪə| Also ittria. [mod.L. (Ekeberg, 1797), f. the name of Ytterby: see ytterbite.] An earth obtained as a white powder from gadolinite and other rare minerals, consisting of sesquioxide of yttrium (Y2O3).
1800Henry Epit. Chem. (1808) 105 Yttria, or Ittria.—This earth was discovered in 1794..in a stone from Ytterby in Sweden. 1873Fownes' Chem. (ed. 11) 382 To obtain the earths, yttria and erbia, in the separate state, gadolinite is digested with hydrochloric acid. |

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