oxidation-reduction indicator

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Related to Redox indicator: Redox titration

oxidation-reduction indicator

[‚äk·sə′dā·shən ri′dək·shən ‚in·də‚kād·ər]
(analytical chemistry)
A compound whose color in the oxidized state differs from that in the reduced state.
References in periodicals archive ?
Several colorimetric redox indicators are given in Table 2 along with the color of the oxidized species.
The same cotton swabs used in the Ionscan 400B IMS (Smiths Detection, Inc) were treated with the redox indicators in Table 2 and were evaluated both dry and wet to determine if colorimetric wipes were suitable for primary or secondary security screening.