Registration Dossier
Registration Dossier
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EC number: 221-259-8 | CAS number: 3048-64-4
Endpoint summary
Administrative data
Description of key information
Additional information
VNB is volatile (vapor pressure 16.5 hPa) and hydrophobic (log Pow 3.39). Water solubility of ENB is <100 mg/L. The substance is not readily biodegradable. Using the EPIWIN models, the atmospheric half-life of ENB is estimated to be 87 min and the half-life of reaction with ozone radicals is estimated to be 78 min.
VNB is expected to be slightly to moderately mobile in soil based on a measured soil adsorption coefficient (Koc) for a very similar substance can comparisons with predictions from measured logKows of 316. However, if spilled on soil, Fugacity level I calculations suggest that the majority (~99%) of VNB released to the environment would partition to air. Vapor phase VNB will be degraded in the atmosphere by reaction with photochemically produced hydroxy radicals and ozone molecules. If released into water, VNB is expected to volatilize to the atmosphere. The model predicts that ultimate biodegradation will take place within a timeframe of weeks. Whilst there is no formal study available to verify this, the model would suggest potential for inherent biodegradability..
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