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出典:Wiktionary
出典:『Wiktionary』 (2008/06/06 04:00 UTC 版)
halochromism (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2010/03/22 19:24 UTC 版)
A halochromic material is a material which changes colour when pH changes occur. The term ‘chromic’ is defined as materials that can change colour reversibly with the presence of a factor. In this case, the factor is pH. The pH indicators have this property.
Halochromism