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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Description of key information

The substance is poorly biodegradable in water. Therefore comparable low degradation rates are expected for decomposition in surface water and sediment and in soil.

Additional information

Furthermore, the biotic degradation testing shall be proposed if the chemical safety assessment according to Annex I indicates the need to investigate further degradation of the substance and its degradation products (REACH Annex IX, column 2). The substance is not classified according to GHS and shows no hazard to aquatic organisms. Thus, the use of the substance can be considered as safe and no testing is required.  In accordance with Annex VIII, IX and X of Regulation (EC) No. 1907/2006 further biotic degradation tests shall be proposed if the result of the Chemical Safety Assessment indicates the need to investigate further the degradation of the substance and its degradation products. Furthermore, as a pigment, the substance is chemically very stable as it exhibits a conjugated system with completely delocalized electrons. A delocalized electron system results in thermodynamically very stable molecules which are not prone to degradation processes. Based on its molecular structure the described pigment will probably be persistent in the environment.

Furthermore, according to Appendix R7-1 for nanomaterials applicable to Chapter R7a, a heteroagglomeration/aggregation with other particles with same material or other particle, e.g. organic matter, or to the interface between phases is very unlikely due to the very low water solubility, low logKow value and non-occurrence of functional groups of the molecule.  Simulation biodegradation tests in water, sediment and soil are not proposed, since no relevant new findings are expected from such investigations.