Registration Dossier

Environmental fate & pathways

Phototransformation in air

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Description of key information

EPISUITE (AOPWIN v1.92) was used to calculate the hydroxyl radical reaction half-life for the most abundant component of the registered UVCB substance. The degradation rate constant was 72.4475 x 10E-12 cm3/molecule-sec (cis isomer) and 80.0475 x 10E-12 cm3/molecule-sec (trans isomer). Half-life was estimated to be 1.772 hours for the cis isomer and 1.603 hours for the trans isomer based on a 12-hour day.

Key value for chemical safety assessment

Additional information

Hydroxyl radical reaction half-life for 2-dodec-1-en-1-ylsuccinic acid was estimated to be 1.772 hours for the cis isomer and 1.603 hours for the trans isomer based on 12 hours of daylight.The degradation rate constant was 72.4475 x 10E-12 cm3/molecule-sec (cis isomer) and 80.0475 x 10E-12 cm3/molecule-sec (trans isomer).