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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Experimental procedure is technically not feasible. Prediction with KOCWINv2.00: logKoc: 15.65 

Key value for chemical safety assessment

Koc at 20 °C:
4 466 835 921 509 635

Additional information

The soil adsorption coefficient of Benzenesulfonic acid, di-C10-14-alkyl derivs., calcium salts was determined by the computer program KOCWIN v2.00 (EPIWIN software) by US-EPA (Chemservice S.A., 2013). This tool estimates the organic carbon-normalized sorption coefficient for soil (and also for sediment), which is designated as Koc. Two different models are used for this estimation: the Sabljic molecular connectivity (MCI) method as well as with the traditional method which is based on logPow. The traditional method gives a logKoc of 15.75 (Koc: 5.64E+15 L/kg) and the MCI method reveals a comparable value of 15.65 (Koc: 1E+10 L/kg) as result. The MCI method is taken more seriously into account due to the fact, that it includes improved correction factors.

[LogKoc: 15.65]