yttrian.
/ˈɪtrɪə/ Chemistry.
An earth obtained as a white powder from gadolinite and other rare minerals, consisting of sesquioxide of yttrium (Y2O3).
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yttria1806
1806 W. Henry Epitome Chem. (ed. 4) i. viii. 100 Yttria, or Ittria.—This earth was discovered in 1794..in a stone from Ytterby in Sweden.
1873 H. Watts Fownes's Man. Elem. Chem. (ed. 11) 382 To obtain the earths, yttria and erbia, in the separate state, gadolinite is digested with hydrochloric acid.
This entry has not yet been fully updated (first published 1921; most recently modified version published online December 2020).
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