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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

The 96-h EC50 is 240 mg/l in the fresh water Selenastrum capricornutum (Shell Research Ltd., 1986)

Key value for chemical safety assessment

EC50 for freshwater algae:
240 mg/L

Additional information

A GLP-compliant guideline study (EPA-660/3-75-009) is available for propylene oxide reporting a 96 h EC50 value of 240 mg/L based on growth rate in the freshwater species Selenastrum capricornutum (new name: Pseudokirchnerella subcapitata) (Shell Research Ltd., 1986).