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EC number: 202-476-7
CAS number: 96-09-3
Styrene oxide present in the gas-phase of the atmosphere will be degraded in a few days by reaction with OH radicals (t1/2 = 3.2 days).
photodegradation of styrene oxide in air by reaction with OH radicals
was calculated using EPIWIN v3.20, AOPWIN v1.92. Based on the reaction
rate constant k(OH)=5.0572 x 10E-12 cm³/molecule x sec (at 25°C) and
assuming a OH radical concentration of 5 x 10E5 radicals/cm³ (24 -h day)
a half-life t1/2=76 h (3.2 d) can be calculated. This result indicates
that styrene oxide present in the gas-phase of the atmosphere will bedegraded
in a few days by reaction
with OH radicals.
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