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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Based upon a calculated log Koc adsorption to solid soil phase is not expected.

Key value for chemical safety assessment

Koc at 20 °C:

Additional information

A calculated logKoc of 0.079 is available (BASF AG, SRC PCKOC v1.66, 2007). This value refers to the uncharged molecule (pKa value: 4.87). This pKa value indicates that the molecule will exist primarily as an anion. Hence, the value calculated by the PCKOC-model requires a recalculation based on the environmentally relevant pH values to take into account the ionic structure of the molecule. Under environmental conditions (pH from 5 to 9) the test substance is almost completely present in its charged form at the pH values of 7 and 9 and 57% of the molecule are present in its charged form at a pH of 5 (calculated using the formula % ionised = 100/(1+10(pKa - pH)). In a calculation conducted according to a publication by Franco & Trapp, 2008 using the parameters pKa = 4.87 and log Pow = 0.58 log Koc values for the pH values 5, 7 and 9 were determined to be 1.54, 1.6 and 1.6, respectively.