出典:Wiktionary
出典:『Wiktionary』 (2025/06/07 23:58 UTC 版)
base metal (countable and uncountable, plural base metals)
出典:『Wiktionary』 (2008/05/12 19:29 UTC 版)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/05 01:42 UTC 版)
In chemistry, the term base metal is used informally to refer to a metal that oxidizes or corrodes relatively easily, and reacts variably with diluted hydrochloric acid (HCl) to form hydrogen. Examples include iron, nickel, lead and zinc. Copper is considered a base metal as it oxidizes relatively easily, although it does not react with HCl.