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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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