Definition of acid-base indicator Acid-base indicator
We found 2 definitions of acid-base indicator from 2 different sources.
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What does acid-base indicator mean?
WordNet
Noun |
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| acid-base indicator - an indicator that changes color on going from acidic to basic solutions | ||
| indicator a device for showing the operating condition of some system | ||
| phenolphthalein a laxative used in many preparations under various trade names; also used as an acid-base indicator in titrations involving weak acids and strong bases because it is brilliant red at high alkalinity and colorless below pH 8 | ||
| congo red a red-brown azo dye especially as a chemical pH indicator (congo red is red in basic and blue in acidic solutions) | ||
| methyl orange an azo dye used as an acid-base indicator; used for titrations involving weak bases | ||
| litmus, litmus test a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicator | ||
| bromophenol blue, bromphenol blue, tetrabromo-phenolsulfonephthalein a dye used as an acid-base indicator | ||
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Wiktionary 
- acid-base indicator (Noun)
A substance that shows the acidity or alkalinity of a solution by its colour.
