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: 236-828-6
CAS number: 13501-76-3
(3-chloropropyl)diethoxymethylsilane and its hydrolysis product
(3-chloropropyl) methylsilanediol contain no chromophores that would
absorb visible or UV radiation so direct photolysis is not likely to be
significant. Indirect photolysis resulting from gas-phase reaction with
photo chemically-produced hydroxyl radicals may occur.
The SRC AOPWIN program(v1.92)has been used to obtain values of the
rate constantkOHfor reaction of
(3-chloropropyl)methylsilanediolwith hydroxyl radicals. This prediction
method has not been validated to assess applicability to silanes and
silanols; therefore, there is uncertainty associated with the calculated
The overall half-life in air under default conditions of hydroxyl
radical concentration was calculated using the following expressions:
kdegair(d-1) = kOH(cm3/molecule.sec)
x OH Concair(molecules/cm3) x 24 x 3600
DT50(d) = ln 2/ kdegair(d-1)
kdegair= total rate constant for
degradation in air
kOH= rate constant for reaction
with hydroxyl radicals
OH Concair= concentration of hydroxyl radicals in air
=5 x 105OH molecules/ cm3
The results are given in table 4.1.2.
Table4.1.1Results of photodegradation in air calculations
kOH (cm3 / molecule.sec)
14.6 x 10-12
6.1 x 10-12
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