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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicity to microorganisms

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Administrative data

Link to relevant study record(s)

Description of key information

Inhibition control data from a ready biodegradability test have been used to determine the toxicity potential of polysulfides, di-tert-bu towards aquatic micro-organisms. Results show that polysulfides, di-tert-bu is not inhibitory to micro-organisms at a concentration of 45.1 mg/l.

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
45.1 mg/L

Additional information

Thiebaud (1997) is a GLP-compliant, ready biodegradability test following OECD guideline 301B. An inhibition control flask, containing test substance, reference substance and inoculum, was used to show that polysulfides, di-tert-butyl does not inhibit micro-organisms. The study is available as an unpublished report and is considered reliable and suitable for use for this endpoint.