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Environmental fate & pathways

Phototransformation in air

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Description of key information

After evaporation  4,4-sulphonyldiphenol will be degraded rapidly in the troposphere by photochemical processes.

Key value for chemical safety assessment

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

Additional information

Based on a calculation according to AOPWIN v1.92, 4,4-sulphonyldiphenol is indirectly photodegraded by reaction with hydroxyl radicals in the atmosphere with a half-life (t1/2) of about 26.5 h taking into account a degradation rate constan of 14.53 E-12 cm³/molecule*sec, 24-h day and a mean OH radical concentration of 0.5E06 radicals per cm³ .