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Environmental fate & pathways

Phototransformation in air

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Description of key information

Phototransformation in air T1/2 = 5.274 hours or 0.439 days (12 hrs daylight) at 298 K (sensitizer: OH radical) (AOP win v1.92).

Key value for chemical safety assessment

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

Additional information

A degradation rate constant with OH radicals of 24.3371 E-12 cm3 molecule-1 sec-1 at 25 deg C and 1.5E6 OH/cm3 was estimated using AOP win v1.92, based on SAR developed by Atkinson. Diisopropyl ether is expected to rapidly degrade in the atmosphere, by hydroxyl radical attack.