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Environmental fate & pathways

Phototransformation in air

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Description of key information

Half-life for reaction with photochemically-produced hydroxyl radicals: estimated to be between 3.9 and 11.8 hours.
Overall degradation rate constant with OH radicals= 2.83 E-06 cm3/(molecule-day).

Key value for chemical safety assessment

Half-life in air:
11.8 h
Degradation rate constant with OH radicals:
0 cm³ molecule-1 d-1

Additional information

The stability of the substance in the atmosphere was calculated using the software AOPWIN (v1.92). It is predicted that the substance will be degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals.

The half-life for this reaction in air is estimated to be between 0.326 and 0.490 days, at different test conditions. The most conservative value (EU standard conditions) was selected.

The overall degradation rate constant with OH radicals is estimated to be equal to 2.83 E-06 cm3/(molecule-day).