单词 | iron silicate |
释义 | > as lemmasiron silicate b. In names of chemical compounds of iron, as iron chloride, iron iodide, iron phosphate, iron silicate, etc.Many of these compounds exist in two different forms: ferrous, in which iron has a valency of two (cf. ferrous adj. 2) and ferric, in which iron has a valency of three (cf. ferric adj. 1).Recorded earliest in iron oxide n. at Compounds 2.Some other examples are treated more fully under Compounds 2. ΚΠ 1788 J. St. John tr. L. B. Guyton de Morveau et al. Method Chym. Nomencl. 32 Plumbago..shall take the appellation of carburet of iron.] 1790 W. Nicholson tr. A.-F. de Fourcroy Elements Nat. Hist. & Chem. (new ed.) II. 193 The arsenic acid is separated from the alkali, and combines with the iron oxide [Fr. avec celle [sc. la chaux] du fer]. 1826 E. Emmons Man. Mineral. 220 Pittizite, see iron subsulphate. 1863 Chem. News 1 Aug. (advt.) Iron iodide..1s. 2d. oz. 1877 R. W. Raymond Statistics Mines & Mining 397 To repair unavoidable losses in the iron-chloride of the bath. 1922 T. M. Lowry Inorg. Chem. xliii. 828 In the melting operation the iron oxides combine with silica to form a fusible slag of iron silicate. 1939 Automobile Engineer 29 460/1 Phosphatisation converts the work surfaces to a porous but adherent coating of iron phosphate. 1991 Amer. Scientist Mar. 135/1 Rapid burial of large amounts of organic matter may lead to the formation of iron carbonate. 2000 Guardian 9 Dec. (Weekend Suppl.) 34/3 Iron chloride..has been commonly used by painters and artisans throughout the centuries. < as lemmas |
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