oxidation-reduction indicator
- noun
- /ˌɑksɪˈdeɪʃən rɪˈdʌkʃən ˈɪndɪˌkeɪtər/
- Specialized
:
indicador de oxidación-reducción
- A common oxidation-reduction indicator in titrations is methylene blue, which changes color depending on the solution's redox state.
Examples
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Using an oxidation-reduction indicator helps determine the endpoint in redox titrations by a noticeable color shift.
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The chemist added an oxidation-reduction indicator to the reaction to monitor its progress visually.
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The oxidation-reduction indicator changed color in the solution.
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The lab used several oxidation-reduction indicators for testing.
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A common oxidation-reduction indicator in titrations is methylene blue, which changes color depending on the solution's redox state.
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The chemist added an oxidation-reduction indicator to the reaction to monitor its progress visually.
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Using an oxidation-reduction indicator helps determine the endpoint in redox titrations by a noticeable color shift.
Synonyms
3
4.3
A substance that changes color to show a chemical reaction
Surface Forms
Morphology
oxidation-reduction + indicator
The noun phrase is compositionally transparent: it denotes an 'indicator' (a chemical that signals something) specifically for the 'oxidation–reduction' (redox) process. If a learner knows the constituent meanings, the overall sense — a chemical that changes color according to oxidation or reduction state — follows directly from standard noun-modifier composition and is not idiomatic.
Etymology
The noun oxidation-reduction indicator is a literal name: it is an indicator that changes color when a solution is in oxidation, losing tiny particles called electrons, or in reduction, gaining those particles. That's why chemists use it to tell which state the solution is in.