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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

Thioacetic acid is considered as toxic to daphnia.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
2.1 mg/L

Additional information

The acute toxicity of thioacetic acid to Daphnia magna was assessed according to OECD 202 guideline and GLP requirements (Thiébaud, 1999). Daphnids were exposed in a static test to a nominal concentration range of 0.1 to 5 mg/L. The test concentrations of thioacetic acid were measured by HPLC and showed that the concentrations of test substance have been maintained to within 80% of the initial concentration throughout the duration of the test. Validity criteria were fulfilled. EC50 _48h was calculated to be 2.1 mg/L expressed as initial measured concentrations.