Registration Dossier
Registration Dossier
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EC number: 266-737-7 | CAS number: 67584-59-2
Endpoint summary
Administrative data
Description of key information
Stability (abiotic transformation) endpoints generally consist of phototransformation and hydrolytic reactions. Given a vapor pressure of 0.5 Pa at 20 °C for the subcooled material, volatilization of C4 sulfonamide methacrylate to the atmospheric compartment during could be expected. Based on technical service expert estimates, little release of C4 sulfonamido methacrylate to the atmospheric compartment is expected during manufacture and polymerization. A modeled rate constant of 3.19E-011 cm³/molecule∙s for reaction with hydroxyl radical indicates a projected atmospheric half-life of 12 hours. Hydrolysis was examined by read-across from the acrylate analog 2-(N-methylperfluorobutanesulfonamido)ethyl acrylate (i.e., C4 acrylate). The resulting half-life is 0.6049 years (221 days) at pH 7 and 25 °C. Process water at the manufacturing facility is treated using a combination of technologies. Reduction of C4 acrylate to <2 ppb (the limit of quantification) in the effluent water during treatment has been shown. No significant releases of C4 acrylate to aquatic systems are expected. C4 sulfonamido methacrylate is somewhat more hydrophobic than C4 acrylate and is expected to have a somewhat higher extraction efficiency during wastewater treatment. Due to the lack of exposure to aquatic systems, hydrolysis is not expected to be relevant to the fate of C4 sulfonamido methacrylate.
Additional information
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