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EC number: 293-187-5 | CAS number: 91052-28-7
Phototransformation in air
Administrative data
Link to relevant study record(s)
Description of key information
Not relevant due to low vapour pressure
Key value for chemical safety assessment
Additional information
No experimental data evaluating the potential for photodegradation of Glycerides,C14-18 and C16-18 unsaturated, mono-, di- and tri- (CAS No. 91052-28-7) in air are available. Since the substance is a complex UVCB, QSAR calculations using the AOPWIN v1.92 program have been performed on representative components (C14, C16, C18 saturated and C18 unsatd. fatty acids mono-, di- and triester), resulting in estimated half-lives (DT50 values) ranging from 1.5-13.4 hours (reaction with OH-radicals, 24h-day)(López Parrón, 2011). These values indicate that the substance is susceptible to undergo rapid indirect photodegradation in air. Nevertheless, this is not expected to be a relevant environmental fate process, since Glycerides,C14-18 and C16-18 unsaturated, mono-, di- and tri- is not likely to be present in the atmosphere in relevant amounts based on its estimated vapour pressure value (< 0.0001 Pa at 20 °C).
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