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Environmental fate & pathways

Adsorption / desorption

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Description of key information

According to REACH regulation (Annex VIII, 9.3.1 column 2) an adsorption/desorption screening test does not need to be conducted, if the substance and its relevant degradation products decompose rapidly. As the TEA-Esterquats are determined to be readily biodegradable and are subject to degradation by hydrolysis, therefore a study on adsorption/desorption is considered to be not necessary.

Nevertheless the log KOC was deviated by QSAR modeling . The calculated log KOC is 2.28 using the QSAR tool KOCwin Vs. 2.0 by US EPA.

Key value for chemical safety assessment

Koc at 20 °C:

Additional information

[LogKoc: 2.28]