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Environmental fate & pathways

Phototransformation in air

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Link to relevant study record(s)

Description of key information

After evaporation or exposure to air, rapidly photodegradation is expected

Key value for chemical safety assessment

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

Additional information

For the structural analogue of Blankophor TP 0306 (CAS 32257 -57 -1), CAS 16470 -24 -9, a calculation according to AOPWIN v1.92 was performed. The calculation shows an indirect photodegradation of the substance by reaction with hydroxyl radicals in the atmosphere. The half-lives range from 1.56 hours (trans-isomer) to 1.61 hours (cis-isomer) taking into account a 24-h day and a mean OH radical concentration of 0.5E06 radicals per cm³ (Bieberstein, 2013).