About The Word Congo red
Learn about the word Congo red to help solve your crossword puzzle. Discover Congo red definitions and meaning, origins, synonyms, related terms and more at the free Crossword Dictionary.
Congo red
| Congo red Definition And Meaning |
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What's The Definition Of Congo red?
[n] a red-brown azo dye especially as a chemical pH indicator (congo red is red in basic and blue in acidic solutions)
Synonyms | Synonyms for Congo red: Related Terms | Find terms related to Congo red: See Also | acid-base indicator | azo dye Congo red In Webster's Dictionary \Congo red\ (Chem.)
An artificial red dye from which the Congo group received its
name. It is also widely used either in aqueous solution or as
test paper (
{Congo paper}) for the detection of free acid, which turns it
blue.
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