Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

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 Chesar 3.7/EUSES 2.1.2), see table below.


Due to the rapid hydrolysis of the parent substance to form 3-aminopropylsilanetriol and methanol the distribution calculation is performed for the silanol hydrolysis product.


Table. Distribution modelling for STP





Fraction of emission directed to water by STP




Fraction of emission directed to air by STP




Fraction of emission directed to sludge by STP




Fraction of the emission degraded in STP





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.