acid–base indicator

https://doi.org/10.1351/goldbook.A00075
An acid or base which exhibits a colour change on neutralization by the basic or acidic @T06386@ at or near the @T06387-1@ of a @T06387-2@.
Source:
Orange Book, 2nd ed., p. 48 [Terms] [Book]
Cite as: IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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Last updated: February 24, 2014 (v. 2.3.3)