Sounding out Congo Red
Ultrasound can drain the color from toxic dyes
08-May-2008 -
Brightly colored dyes such as the shimmering Congo Red commonly used in silk clothing manufacture are notoriously difficult to dispose of in an environmentally benign way. Congo Red is an azo dye, it is toxic to many organisms and is a suspected carcinogen and mutagen. To give it its full name it ...
biodegradation
carbon dioxide
dyes
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