Registration Dossier
Registration Dossier
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EC number: 220-780-8 | CAS number: 2897-60-1
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), see table below. Due to the moderately rapid hydrolysis of [3-(2,3-epoxypropoxy)propyl]diethoxy(methyl)silane, the distribution calculation is done for the silanol hydrolysis product, [3-(2,3-epoxypropoxy)propyl]methylsilanediol.
Table: Distribution modelling for STP
Fraction of emission directed to air by STP |
2.0E-06 |
[%] |
Fraction of emission directed to water by STP |
99.9 |
[%] |
Fraction of emission directed to sludge by STP |
0.057 |
[%] |
Fraction of the emission degraded in STP |
0 |
[%] |
[3-(2,3-epoxypropoxy)propyl]diethoxy(methyl)silane hydrolyses moderately rapidly to form [3-(2,3-epoxypropoxy)propyl]methylsilanediol and ethanol.
[3 -(2,3 -epoxypropoxy)propyl]methylsilanediol 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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