kongo kırmızısı

listen to the pronunciation of kongo kırmızısı
Türkçe - İngilizce
congo red
a dye that turns red in alkaline, blue in acidic solutions
An artificial red dye from which the Congo group received its name
a red-brown azo dye especially as a chemical pH indicator (congo red is red in basic and blue in acidic solutions)
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
kongo kırmızısı