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EC number: 203-051-9
CAS number: 102-76-1
Phototransformation in air is not relevant based on the low vapour pressure (0.3306 Pa at 25 °C).
No experimental studies investigating the phototransformation in air of
triacetin are available. Thus, the phototransformation in air was
calculated using AOPWIN v1.92 (Müller, 2013).
The results indicate that triacetin shows a slow degradation by indirect
photodegradation in air. The estimated half-life for the reaction with
OH-radicals is 45.307 h (24 h day; OH-concentration: 0.5E+06 OH/cm³).However,
this is not expected to be a relevant environmental fate process, since
triacetin is not expected to be present in the atmosphere based on the
low Henry’s Law Constant of < 1 Pa m³/mole and the low vapour pressure
of 0.3306 Pa at 25 °C. Based on this result, it can be concluded that
phototransformation in air is not a relevant degradation pathway for
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