Registration Dossier
Registration Dossier
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EC number: 203-450-8 | CAS number: 106-99-0
Endpoint summary
Administrative data
Description of key information
Atmospheric photooxidation half-lives of 1,3-butadiene were predicted to be 1.93 h (hydroxyl radicals), 34.0 h (ozone), and 76.8 h (NO3 radicals). 1,3 -butadiene is not predicted to be persistent in air and is predicted to be mainly degraded by reaction with OH radicals. The reaction rates with ozone and NO3 are less rapid, and therefore less important than the reaction rate with hydroxyl radicals during daylight hours. However, at night, when the concentration of hydroxyl radicals falls to negligible levels, the degradation processes that involve ozone and NO3 will predominate. Overall, 1,3 -Butadiene is expected to be rapidly degraded in the atmosphere through photooxidative reaction mechanisms.
Additional information
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