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Environmental fate & pathways

Adsorption / desorption

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Description of key information

The adsorption/desorption behaviour of TCD-emulsifier in soil, sediment and sewage sludge, as indicated by the adsorption/desorption coefficient (Koc), is described by a QSAR estimation using EpiSuite 4.1/KOCWIN v2.00.

Key value for chemical safety assessment

Koc at 20 °C:
265 200

Additional information

The soil adsorption coefficient of TCD-emulsifier was calculated by a QSAR estimation using EpiSuite 4.1/KOCWIN v2.00. The estimated value of Koc = 265200 L/kg (MCI method) is relatively high and might suggest an increased potential for adsorption.