单词 | ferric oxide |
释义 | > as lemmasferric oxide ferric oxide n. iron( iii) oxide, a dark red solid which occurs naturally as the mineral haematite and is the main component of jeweller's rouge (rouge n.1 5); cf. rust n.1 1a.Formula: Fe2O3. ΚΠ 1813Ferric oxide [see sense 1]. 1884 W. H. Greenwood Steel & Iron vi. 92 The chemical reactions..are very simple, involving only the reduction of ferric oxide. 1932 G. W. Robinson Soils iii. 57 The most widely spread type of pan is that formed by deposition of hydrated ferric oxide, the so-called iron pan. 2000 Esquire June 146/2 Red dust..blew without letup through the open windows, covering materials, tools, packaging, and people..with a powdery skin of ferric oxide. < as lemmas |
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