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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Adsorption to solid soil phase is not expected.

Key value for chemical safety assessment

Koc at 20 °C:
0.051

Additional information

Estimated Koc by calculation: 0.05096.

The log Koc was calculated by EpiSuite's KOCWIN model. The suitability of the model was assessed and it was concluded that L-proline is considered to be inside the applicability domain of the EpiSuite KOCWIN model.

In accordance with REACH Annex VIII section 9.3.1. column 2 as well as REACH Annex IX section 9.3.3. column 2 the study on adsorption/desorption screening (required in section 9.3.1. column 1) does not need to be conducted as the substance has a low log Kow as well as the substance and its degradation products decompose rapidly. Adsorption to solid soil phase is not expected. From the water surface L-proline will not evaporate into the atmosphere.

Despite of that, Koc was calculated.