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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

The 96-h LC50 in freshwater fish calculated using ECOSAR v1.11 for neutral organics is 81 mg/L.

Key value for chemical safety assessment

LC50 for freshwater fish:
81 mg/L

Additional information

Giving the physical nature of hexafluoro-1,3-butadiene and due to the difficulty to test it meaningfully, no experimental aquatic results are available. Instead, QSAR methods have been used to estimate the acute toxicity of the substance to aquatic organisms. The effect concentrations of hexafluoro-1,3-butadiene were estimated using ECOSAR v1.11 (2012). The measured log Kow value of 2.24 was used for the predictions.