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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Fate (release percentage) in the modelled biological sewage treatment plant

In a standard (modelled) biological STP, the emissions are distributed in the following way:

Assessment entities

Trimethyl(octadecyloxy)silane

Octadecan-1-ol

Release to water

5.99%

8.822%

Release to air

10.59%

1.986%

Release to sludge

81.98%

83.64%

Release degraded

1.439%

5.548%

The above fractions are calculated by the SIMPLETREAT model integrated in EUSES.

Distribution modelling indicates that sludge is the main compartment to which both constituents of the registered substance are expected to partition in a sewage treatment plant.