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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Additional information

No data on the terrestrial toxicity of 1,2-epoxybutane is provided. The test substance is not supposed to be directly applied to soil, and based upon a calculated log Koc of 1.3, adsorption to the solid soil phase is not expected. The substance is classified as readily biodegradable (Chapter 5.2.1), so it can be assumed the substance will be completely biologically degraded within the STP process. Hence, an indirect exposure to soil via sewage sludge transfer is unlikely. Furthermore, due to a low log Kow, no accumulation in organisms is expected (Chapter 5.3.1).