Registration Dossier
Registration Dossier
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EC number: 213-048-4 | CAS number: 919-30-2
Endpoint summary
Administrative data
Description of key information
Additional information
The distribution in a sewage treatment plant (STP) has been estimated using the SimpleTreat model (implemented in EUSES 2.1.2/Chesar 3.4), see table below. The distribution calculation is done for the parent substance, hydrolysis products, 3-aminopropylsilanetriol and ethanol.
Table: Distribution modelling for STP
|
3-Aminopropyl(triethoxy)silane |
(3-Aminopropyl)silanetriol |
Ethanol |
|
Fraction of emission directed to water by STP |
99.87 |
99.99 |
12.62 |
[%] |
Fraction of emission directed to air by STP |
0.093 |
4.66E-11 |
0.075 |
[%] |
Fraction of emission directed to sludge by STP |
0.028 |
3.13E-11 |
0.069 |
[%] |
Fraction of the emission degraded in STP |
0 |
0 |
87.23 |
[%] |
3-Aminopropyl(triethoxy)silane hydrolyses rapidly in contact with water to 3-aminopropylsilanetriol and ethanol. 3-Aminopropylsilanetriol is not expected to undergo any significant biodegradation, has low Henry’s Law constant and low log Kow/log Koc. Therefore, water is the main compartment to which it is expected to partition in a sewage treatment plant.
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