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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

The acute toxicity of Octadecanoic acid, 9(or 10)-sulfo-, potassium salt (CAS-No. 67968 -63 -2) for green algae has been tested in the OECD 201 test with Pseudokirchneriella subcapitata. After 72 hour of exposure, an ELC50 > 207.6 mg/l was obtained.

Key value for chemical safety assessment

EC50 for freshwater algae:
207.6 mg/L
EC10 or NOEC for freshwater algae:
125 mg/L

Additional information