Registration Dossier
Registration Dossier
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EC number: 216-768-7 | CAS number: 1663-39-4
Endpoint summary
Administrative data
Description of key information
Adsorption/Desorption
Adsorption to solid soil phase is not expected. For tert-butyl acrylate log Koc values for the uncharged molecule were calculated to be 138.9 L/kg (log Koc = 2.1428) and 23.14 L/kg (log Koc = 1.3643)
when based on the log Kow method and the MCI method, respectively.
Henry's law constant
For the substance tert-butyl acrylate the Henry's law constant was calculated to be 21.9 Pa·m³/mole based on the Bond Contribution Method, indicating slow evaporation of the substance from the water surface into the atmosphere.
Distribution modelling
Distribution modeling using Mackay Level I indicates that tert-butyl acrylate is likely to partition to the air compartment (97.8%) with the remainder partitioning into water (2.1%); negligible amounts are predicted to occur in other environmental compartments (soil, sediment) (Level I Fugacity, 2017).
Based on the physical chemical properties of tert-butyl acrylate, the atmosphere is the main target compartment for distribution and only small amounts will remain in the hydrosphere and geosphere.
Additional information
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