Registration Dossier
Registration Dossier
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EC number: 206-851-6 | CAS number: 383-63-1
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
One key study is available, according to a methodology comparable to an OECD 203 guideline without GLP statement, to assess the acute toxicity of ethyl trifluoroacetate to the Fathead Minnow Pimephales promelas. The LC50 and EC50 (96h) for mortality and effect were determined at 10 g/L.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 10 g/L
Additional information
One key study is available (Geiger et al., 1988) to assess the acute toxicity of ethyl trifluoroacetate to the Fathead Minnow Pimephales promelas. This study was realized under semi-static conditions, according to a methodology comparable to an OECD 203 guideline without GLP statement. The nominal concentrations of ethyl trifluoroacetate were 2.94, 4.52, 6.96, 10.7 and 16.4 g/L with one control. These concentrations were measured by Gas Liquid Chromatography method and correspond to at least 80 per cent of the nominal concentration throughout the test. Fish were exposed at these concentrations during 96h. Five organisms per vessel were used for each concentration and the control. During the exposure, the temperature was 23.2 +/- 0.54 °C, the pH was 7.7 +/-0.11 and the dissolved oxygen concentration was 6.4 +/- 1.33 mg/l on average. The number of dead fish and effect observation were noted every 24 hr after the beginning of the test and until 96h. The LC50 and EC50 (96h) for mortality and effect were determined at 10 g/L.
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