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EC number: 932-235-8
CAS number: -
The direct photolysis of an organic molecule
occurs when it absorbs sufficient light energy to result in a structural
transformation. The absorption of light in the ultra violet (UV)
-visible range, 110-750 nm, can result in the electronic excitation of
an organic molecule. The stratospheric ozone layer prevents UV light of
less than 290 nm from reaching the earth's surface. Therefore, only
light at wavelengths between 290 and 750 nm can result in photochemical
transformations in the environment.
A conservative approach to estimating a
photochemical degradation rate is to assume that degradation will occur
in proportion to the amount of light wavelengths >290 nm absorbed by the
molecule. This substance contains hydrocarbon molecules that absorb UV
light below 290 nm, a range of UV light that does not reach the earth's
surface. Therefore, this substance does not have the potential to
undergo photolysis in water and soil, and this fate process will not
contribute to a measurable degradative loss of this substance from the
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