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Environmental fate & pathways

Phototransformation in air

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Description of key information

OH-radical rate constant: 4.9 E-12 cm³/molecule*sec; half-life air: 3.3 d (24 -h day, 0.5 E06 OH/cm³; ECT, 2009).

Key value for chemical safety assessment

Half-life in air:
3.3 d

Additional information

The degradation of n-butyl acetate in air by reaction with OH-radicals was experimentally determined (Kwok & Atkinson, 1994; cited in AOP v1.92). The overall OH rate constant was determined to be 4.9 E-12 cm³/molecule*sec. The half-life was calculated to be 3.3 days (24 -h d; 0.5 E+06 OH/cm³).