Vi fant 2 definisjoner av congo red på engelsk.
Noun |
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| congo red - a red-brown azo dye especially as a chemical pH indicator (congo red is red in basic and blue in acidic solutions) | ||
| azo dye any dye containing one or more azo groups | ||
| acid-base indicator an indicator that changes color on going from acidic to basic solutions | ||
Substantiv |
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| congo red - A dye that turns red in alkaline, blue in acidic solutions. |