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EC number: 225-805-6
CAS number: 5089-70-3
[(3-chloropropyl)triethoxysilane]: 1.7 (QSAR)
log Koc [
(3-chloropropyl)silanetriol]: 0.45 (calculation)
A predicted log Koc
value of 1.7 was obtained for (3-chloropropyl)triethoxysilane using a
validated QSAR estimation method. The result is considered to be
reliable and used for assessment purposes.
substance hydrolyses moderately rapidly to form (3-chloropropyl)silanetriol
and ethanol which have low
log Kow values (<3) and thus have low potential for
For environmental exposure
assessment, adsorption is predicted for the silanol hydrolysis product
using the ‘non-hydrophobics’
log Kow-based prediction method for log Koc developed
by Sabljic and Güsten (1995) for the European Commission and recommended
in EU Guidance.
The relevant equation is:
Log Koc = 0.52
log Kow + 1.02
Therefore, log Koc for
silanol hydrolysis product, (3-chloropropyl)silanetriol
Sabljic A and Güsten H (1995).
QSARs for soil sorption. in: overview of structure-activity
relationships for environmental endpoints. Hermens JLM (ed), report
prepared within the framework of the project "QSAR for prediction of
fate and effects of chemicals in the environment", an international
project of the Environmental Technologies RTD programme (DG XII/D-1) of
the European Commission under contract number EV5V-CT92-0211.
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