Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 202-163-5
CAS number: 92-52-4
The experimentally-derived second-order rate constant for indirect photolysis with OH radical was determined to be 8.06 (± 0.77) E-12 molecules*cm3-18sec-1 at 294 K (21 °C). This equates to an estimated half-life of 16 hrs. at an assumed OH radical conc. of 1.5E6 molecules/cm3.
The experimentally-derived second-order rate constant for indirect
photolysis with OH radical was determined to be 8.06 (± 0.77) E-12
molecules*cm3-18sec-1 at 294 K (21 °C). This equates to an estimated
half-life of 16 hrs. at an assumed OH radical conc. of 1.5E6
molecules/cm3. The experimental value cited in the AOPWIN v1.92a
software is an arithmetic mean of this Key Study value and various other
reported measurements from the literature. The Key Study also showed
negligible reaction of biphenyl with ozone and nitrate radical, and the
supporting study of Freitag et al. showed negligible reaction under
direct photolysis conditions. Thus, the indirect photolysis with OH
radical is the dominant process affecting fate of biphenyl in the
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.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again