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EC number: 247-465-8 | CAS number: 26115-70-8
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 3.1), see table below. Due to the rapid hydrolysis of tris[3-(trimethoxysilyl)propyl]-1,3,5-triazinane-2,4,6-trione, the distribution calculation is done for the hydrolysis products, tris[3-(trihydroxysilyl)propyl]-1,3,5-triazinane-2,4,6-trione and methanol.
Table: Distribution modelling for STP
tris[3-trihydroxysilyl)propyl]-1,3,5-triazinane-2,4,6-trione |
Methanol |
||
Fraction of emission directed to water by STP |
99.99 |
12.62 |
[%] |
Fraction of emission directed to air by STP |
1E-3 |
0.095 |
[%] |
Fraction of emission directed to sludge by STP |
1.1E-3 |
0.037 |
[%] |
Fraction of the emission degraded in STP |
0 |
87.24 |
[%] |
Tris[3-(trimethoxysilyl)propyl]-1,3,5-triazinane-2,4,6-trione hydrolyses rapidly to tris[3-(trihydroxysilyl)propyl]-1,3,5-triazinane-2,4,6-trione and methanol. Methanol is readily biodegradable. Tris[3-(trihydroxysilyl)propyl]-1,3,5-triazinane-2,4,6-trione is not expected to undergo any significant biodegradation, and is predicted to have low Henry’s Law constant and low log Kow/log Koc. Distribution modelling for STP indicates that water is the main compartment to which tris[3-(trihydroxysilyl)propyl]-1,3,5-triazinane-2,4,6-trione is expected to partition in a sewage treatment plant. In view of the extremely low Koc value, tris[3-(trihydroxysilyl)propyl]-1,3,5-triazinane-2,4,6-trione would be expected to remain in the aqueous phase in the wider environment and significant adsorption to sediments would not be anticipated.
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