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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Additional information

A simulation study in water (OECD 309) is available for 1H-Benzotriazole (202-394-1), the source substance for read-across to sodium benzotriazolate (239-269-4; target substance).  This is apporpriate as the target substance will likely be found in neutral form in the environment, due to protonation at relevant environmental pH levels (ca. 6-9). The source substance and other analogues for the target substance were all seen to minimally degrade during biodegradation screening tests (0 to 5 % ulimtate degradation). Moreover, during the simulation test on the source substance primary degradation was found to be < 1 %. This chemcial category of triazoles are considered to be persistent based on degradation ascreening and simulation testing. 

Due to low volatility of sodium benzotriazolate, photodegradation in the atmosphere is considered as minor pathway for abiotic degradation. Nevertheless photolytic degradation in water is assumed to play a relevant part in the fate of benzotriazoles.

Notwithstanding sodium benzotriazole is classified as highly mobile in soil (McCall scheme) based on available data from a guideline study additional factors for interactions with soil and suspended matter have to be considered. The large dipole moment in the molecule promote binding with the solid parts in soil and water influencing retention time and bioavailability. In line with all findings soil and water has been identified as major compartments of concern.