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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

Based on read across, the 48 hour EL50 is >1000 mg/l WAF

Key value for chemical safety assessment

Additional information

Wetton (1998) tested the toxicity of alkenes, C20 - 24 to Daphnia magna in an OECD 202 test. Due to the low solubility of the test substance test organisms were exposed to water accommodated fractions (WAF) and exposure concentrations were expressed as a loading rate. The test was conducted as a limit test with a single exposure concentration of 1000 mg/l WAF. No immobilisation was observed at this loading rate, so the 48 hour EL50 >1000 mg/l WAF.