a red-brown azo dye especially as a chemical pH indicator (congo red is red in basic and blue in acidic solutions)
congo red in 30 Seconds
- (noun) a red-brown azo dye especially as a chemical pH indicator (congo red is red in basic and blue in acidic solutions)
Meanings
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noun a red-brown azo dye especially as a chemical pH indicator (congo red is red in basic and blue in acidic solutions)
Summary
a red-brown azo dye especially as a chemical pH indicator (congo red is red in basic and blue in acidic solutions)
- (noun) a red-brown azo dye especially as a chemical pH indicator (congo red is red in basic and blue in acidic solutions)