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EC number: 402-170-5
CAS number: 106359-91-5
C.I. REACTIVE YELLOW 174; GIALLO REATTIVO 174; JAUNE REACTIF 174; REAKTIV GELB 174
Both the ready biodegradability test as well
as the BOD5/COD ratio indicate that the test substance is not readily
the nature of their design and use, textile dyes are not intended to be
readily biodegradable as this would assist in the rapid destruction of
the dyestuff, rendering it unfit for purpose. There are ISO, European,
American (AATCC) and national standards for the colour fastness of dyes.
Dyes are required to have specific fastness properties. If the dyes were
biodegradable, it would not be possible for them to have these fastness
properties. As such, it is accepted that such substances are not readily
biodegradable under relevant environmental conditions. A published study
(Pagga & Brown, 1986) describes the results of the testing of 87
dyestuffs in short-term aerobic biodegradation tests. The authors of
this publication concluded that dyestuffs are very unlikely to show any
significant biodegradation in such tests and that 'there seems little
point in carrying out such test procedures’ on dyestuffs.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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