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EC number: 266-582-5
CAS number: 67124-09-8
Calculation with AOPWIN v1.92 (EPIWIN software by US-EPA), overall gas-phase reaction constant: 38.6737E-12 cm³/molecules-sec, with an half-life of 3.30 hours by assuming a 12 hr day with an OH rate constant of 1.5E6 OH/cm³ and 25 °C.
The phototransformation in air of the test
substance was determined by the computer program AOPWIN v1.92 (EPIWIN
software) by US-EPA. This tool estimates the gas-phase reaction rate for
the reaction between the most prevalent atmospheric oxidant (hydroxyl
radicals) and a substance. For olefins and acetylenes the gas-phase
ozone radical reaction rates are estimated as well. Additional
information is given by the program if nitrate radical reaction will be
important. The assumed average hydroxyl radical and ozone concentration
are automatically used to calculate the atmospheric half-live for the
chemical of interest.
For the test substance an overall OH rate
constant (gas-phase reaction constant) of 38.6737E-12 cm3/molecules-sec
and a half-life of 0.277 days (3.3 hours) was calculated, assuming a 12-
hr day with an OH rate constant of 1.5 E6 OH/cm³. No ozone reaction as
well as no nitrate radical reaction is estimated for the compound.
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