Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 240-347-7 | CAS number: 16219-75-3
Endpoint summary
Administrative data
Description of key information
Additional information
If released to air, ENB will exist in the vapor phase in the ambient atmosphere based on a reported vapor pressure of 4.2 mmHg (560 Pa) at 20 deg C. In the vapor phase, an atmospheric half-life of 0.87 hour is predicted for ENB due to oxidation by photochemically produced hydroxy radicals. Half-life in the atmosphere due to reaction with ozone is predicted to be 26 min. Hydrolysis of ENB is not expected to occur due to the lack of hydrolyzable functional groups and biodegradation is very slow to none degradable. Fugacity calculation show that >99% of the substance partitions to the atmosphere. Atmospheric degradation is clearly a very important process for the removal of the substance from the environment.
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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