Registration Dossier
Registration Dossier
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EC number: 200-814-8 | CAS number: 74-84-0
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The members of category are considered to be readily biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
The members of category are gases and partition predominantly to the atmosphere, and so experimental data for their biodegradation in water are not appropriate. The potential biodegradation rates of representative members of the category were estimated using QSAR calculations. The results of the BioHCwin predictions indicate that these substances will degrade rapidly, with an estimated half-life of 2.5 to 3.5 days. The BIOWIN predictions indicate that methane, ethane, propane and butane are expected to be readily biodegradable, while isobutane is expected to biodegrade fast but is predicted to be not readily biodegradable.
Overall, based on the weight of evidence available, the members of the category are considered to be readily biodegradable.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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