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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

The estimated LC50 for toxicity to fish was calculated to range from 24.11 to 147.54 mg/L in fresh water.

Key value for chemical safety assessment

Additional information

No experimental data were available on the short-term toxic effects of category members on fish. Due to the difficulty associated with aquatic toxicity testing with gases, QSAR calculations are considered suitable to estimate the effect concentration. ECOSAR Program v1.00 in EPI Suite v4.00 was used, which is acceptable with restrictions. QSAR calculations were conducted for substances which are representative of the carbon numbers of the members of the category (methane, ethane, butane, isobutane and propane). The LC50 (96 hours) for fish is estimated to range from 24.11 to 147.54 mg.l-1in fresh water.