Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The primary source, if releases would occur of environmental pollution of Direct Red 239 is represented by industrial waste water and secondary by release during washing of dyed textile, thus the fate and pathways in surface water is of primary concern.
In the aquatic environment, hydrolysis is not expected to be an important removal process.
Direct Red 239 is not readily biodegradable.
Direct and indirect exposure of sediment and soil to Direct Red 239 is unlikely; since no exposure of the aquatic compartment is foreseen and thus subsequent sediment and/or soil exposure can be excluded.
Given the intended use in aqueous-based treatments, Direct Red 239 is not expected to be released to air and is not expected to partition to this compartment. An estimated vapour pressure of 10-6 Pa at 20 deg C indicates that Direct Red 239 will not exist if not in dust particles in the atmosphere. After evaporation or exposure to the air, Direct Red 239 will be rapidly degraded by photochemical processes
If released into water, Direct Red 239 is not expected to adsorb to suspended solids and sediment.
There are no empirical bioaccumulation data available for Direct Red 239, nevertheless the log Pow:is measured and it is equal to -4.2. On the basis of this outcome, it is expected that Direct Red 239 has a low potential for bioaccumulation and/or a low potential to cross biological membranes.

Additional information