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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 the Direct Blue 199 Na is represented by industrial waste water, thus the fate and pathways of substance in surface water is of primary concern.


In the aquatic environment, hydrolysis is not expected to be an important removal process for substance.

Phototransformation in air/water/soil has not been investigated.


The binding capacity (or “stickiness”) of the substance to solid surfaces is expected to be low.

Given the intended use in aqueous-based treatments, Direct Blue 199 Na is not expected to be released to air and is not expected to partition into this compartment.


Under standard test conditions no readily biodegradation was observed; Direct Blue 199 Na was tested following the Zahn-Wellens/EMPA procedures and less than 20 % degradation (i.e. 5 %) was attained after 28 days of contact time.


There are no empirical bioaccumulation data available for Direct Blue 199 Na, nevertheless on the basis of the negative log Pow, it is expected that the substance has a low potential for bioaccumulation and/or a low potential to cross biological membranes.

Additional information