2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane

Endpoint summary

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 rapid hydrolysis of 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, the distribution calculation is done for the silanol hydrolysis product, 2-(3,4-epoxycyclohexyl)ethylsilanetriol.

Table: Distribution modelling for STP

Fraction of emission directed to air by STP	1.4E-09	[%]
Fraction of emission directed to water by STP	99.9	[%]
Fraction of emission directed to sludge by STP	0.064	[%]
Fraction of the emission degraded in STP	0	[%]

2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane hydrolyses rapidly to 2-(3,4-epoxycyclohexyl)ethylsilanetriol. 2-(3,4-epoxycyclohexyl)ethylsilanetriol is not expected to undergo any significant biodegradation, and is predicted to have low Henry’s Law constant and low log K_ow/log K_oc. Therefore water is the main compartment to which it is expected to partition in a sewage treatment plant.