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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Disperse Yellow 114 is highly insoluble in water as shown in the test on water solubility (<0.7 μg/L). Thus, conducting the hydrolysis study is technically not feasible and is waived in line with criteria in Annex VIII, column 2 REACH. Koc was calculated using EPA tool EPI Suite and value of 27060 is considered for assessment. This means that Disperse Yellow 114 is immobile in soils. By the nature of their design and use, disperse dyes are not intended to be readily biodegradable as this would assist in the rapid destruction of the dyestuff, rendering it unfit for purpose. 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. 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. However, an experimental study is available where the substance was evaluated. The inherent biodegradability of the test substance was evaluated in a modified MITI (II) test conducted according to OECD Guideline 302C. The sludge used for the test had 100 mg/L suspended solids and a theoretical oxygen demand of 45.30 mg O2/L as initial concentration. The observation was carried out for 28 days. Based on the findings of the study, the mean value of the biodegradation of FAT 93460/A after 28 days was 0 and the biochemical oxygen demand (BOD5) after 5 days was: 0 mg O2/g. Hence, the substance can be considered to be not biodegradable.

Additional information