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EC number: 615-086-0
CAS number: 70225-05-7
The registered substance does not absorb light within a range of 290 to 750 nm. Therefore, direct photolysis will not contribute to the degradation of the test substance in the terrestrial environment because it does not absorb light at wavelengths >290 nm, i.e., in the range that contribute to this process. Hence, phototransformation half-life in soil is not applicable.
photochemical degradation in soil occurs through the absorbance of solar
radiation by a chemical substance. If the absorbed energy is high
enough, then, in the resultant excited state, the chemical may undergo a
prerequisite for direct photodegradation is the ability of one or more
bonds within a molecule to absorb ultraviolet (UV)/visible light in the
290 to 750 nm range. Light wavelengths longer than 750 nm do not contain
sufficient energy to break chemical bonds, and wavelengths below 290 nm
are shielded from the earth by the stratospheric ozone layer. An
approach to assessing the potential for the test substance to undergo
direct photochemical degradation is to assume that degradation will
occur in proportion to the amount of light wavelengths >290 nm absorbed
by substance molecules. The
test substance does not absorb light within a range of 290 to 750 nm. Therefore,
direct photolysis will not contribute to the degradation of the test
substance in the terrestrial environment because it does not absorb
light at wavelengths >290 nm, i.e., in the range that contribute to this
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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