Defenition of the word congo red
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Defenition of the word congo red
- a red-brown powder used as a dye, especially as a chemical pH indicator (congo red is red in basic and blue in acidic solutions)
- a red-brown azo dye especially as a chemical pH indicator (congo red is red in basic and blue in acidic solutions)
Hypernyms for the word congo red
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- acid-base indicator
- azo dye
See other words