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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 0.175 and 0.262 days.
Half-life for reaction with photochemically-produced ozone: estimated to be 0.057 days.

Key value for chemical safety assessment

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

Additional information

Stability of the substance in the atmosphere was calculated using the software AOPWIN (v 1.92). It is predicted that the substance will be degraded in the atmosphere:

a) by reaction with photochemically-produced hydroxyl radicals. The half-life for this reaction in air is estimated to be between 0.175 and 0.262 days, at different test conditions

b) by reaction with photochemically-produced ozone. The half-life for this reaction in air is estimated to be 0.057 days.

The more conservative value was selected.