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Ferrous ion : ウィキペディア英語版
Ferrous
Ferrous (Fe2+), in chemistry, indicates a divalent iron compound (+2 oxidation state), as opposed to ferric, which indicates a trivalent iron compound (+3 oxidation state).〔.〕 This usage has mostly been deprecated, with current IUPAC nomenclature having names containing the oxidation state in bracketed Roman numerals instead, such as iron(II) oxide for ferrous oxide (FeO), and iron(III) oxide for ferric oxide (Fe2O3).
Outside chemistry, ferrous is an adjective used to indicate the presence of iron.〔 The word is derived from the Latin word ''ferrum'' ("iron").〔.〕 Ferrous metals include steel and pig iron (with a carbon content of a few percent) and alloys of iron with other metals (such as stainless steel). Manipulation of atom-to-atom relationships between iron, carbon, and various alloying elements establishes the specific properties of ferrous metals.〔(【引用サイトリンク】url=http://www.steelforge.com/literature/ferrousnon-ferrous-materials-textbook/ferrous-metals/ )
The term ''non-ferrous'' is used to indicate metals other than iron and alloys that do not contain an appreciable amount of iron.〔.〕
==See also==

*Ferromagnetism
*Steelmaking
*Ferrous metal recycling
* Iron(II) oxide (ferrous oxide)
* Ferrous chloride (iron(II) chloride)
* Iron(II) bromide (ferrous bromide)

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Ferrous」の詳細全文を読む



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