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Congo red Moderate

Congo red has 2 different meanings across 1 category:

Noun

Definitions
Noun
1

a red-brown azo dye especially as a chemical pH indicator (congo red is red in basic and blue in acidic solutions)

2

A dye that turns red in alkaline, blue in acidic solutions.

See Also
congophilic dye acid base indicator alkaline solution congo dye acidic congo group
Related Terms
Broader Terms (hypernyms)
azo dye acid-base indicator
Rhyming Words
red fred bred pred dred cred erred pored gored pared cored fired mired unred hired fared shred bared cared jered
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