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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Adsorption / desorption

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Administrative data

Link to relevant study record(s)

Description of key information

The adsorption potential to soil or sediment is low. The mean logKoc is 1.05, calculated by 2 QSAR methods.

Key value for chemical safety assessment

Koc at 20 °C:

Additional information

According to column 2 of section 9.3.1. in Annex VIII and section 9.3.3. of Annex IX of REACH "The study need not 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 degradation products decompose rapidly".

The partition coefficients of diacetone acrylamide is low, i.e. log Pow = 0.321, see Chapter 4.7. Diacetone acrylamide is inherently biodegradable. A relevant adsorption of diacetone acrylamide to soil is therefore not expected and a waiving of the study is justified.


Applying additionally a recognised QSAR models it was calculated that the log Koc of diacetone acrylamide is low. The geometric mean of the 2 available Koc was calculated according to the ECHA Guidance Documents on Info Requirements, R. to logKoc = 1.05, corresponding to Koc = 11.2.

The adsorption potential to soil or sediment is therefore considered to be low.

[LogKoc: 1.05]