Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Adsorption / desorption

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

A key value of Log Koc = 3.0 has been determined for the registered substance

Key value for chemical safety assessment

Koc at 20 °C:
1 000

Additional information

The Adsorption Coefficient (Koc) of the registered substance (HDI Trimer MEKO-blocked) was determined by High Performance Liquid Chromatography (Königer, 2009). The experiment was conducted in accordance with the OECD Guideline 121 and in compliance with the OECD-GLP standard. Two main peaks were identified in the chromatogram and two values of Log Koc were thus determined (first peak: Log Koc = 3.0, last peak: Log Koc = 6.6). However for the purpose of the chemical safety assessment a single value need to be derived. The value of 3.0 as Log Koc being compliant with a Log Kow value of 1.6, this value is determined as the key information for the chemical safety assessment.