AZODYES

BY ALAN OSBORNTHE CHROMATE-BASED azo dye known widely as "navy blue," which is used to colour textile and leather products, is to be banned in the 15 European Union countries from June 2004. The European Commission said the chemical, a mixture of disodium and trisodium, will join a list of azo dyes already proscribed or due to be outlawed later in the year under an amendment of the EU's chemicals marketing and use directive adopted last year. Brussels said the chromate content of navy blue was toxic to aquatic organisms, particularly fish and was not easily ...


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