Registration Dossier

Environmental fate & pathways

Adsorption / desorption

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
adsorption / desorption: screening
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance has a low octanol water partition coefficient and the adsorption potential of this substance is related to this parameter
other:

Description of key information

According to column 2 of section 9.3.1. in the Annex VIII of REACH "The study does not need to be conducted if: – based on the physicochemical properties the substance can be expected to have a low potential for adsorption (e.g. the substance has a low octanol-water partition coefficient); or — the substance and its relevant degradation products decompose rapidly." The partition coefficients of 7-AMCA is low, i.e. log Pow = -2.5. A relevant adsorption of 7-AMCA to soil is therefore not expected and a waiving of the study is justified.

QASR estimations endorse the low Koc.

Key value for chemical safety assessment

Koc at 20 °C:
0.06

Additional information

[LogKoc: -1.22]

[LogKoc: -1.22]