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Environmental fate & pathways

Adsorption / desorption

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Description of key information

The log Koc value was predicted with the program KOCWIN: QSAR estimate using EPIsuite v4.11: Koc: 6778 L/kg (MCI method); Log Koc: 3.831(MCI method).
The log Koc = 3.831 indicates that the substance is immobile in soil and sediment according to the classification scheme of McCall et al. (1981).

Key value for chemical safety assessment

Koc at 20 °C:
6 778

Additional information

The log Koc was calculated using KOCWIN v2.00 from the Estimation Program Interface (EPI) Suite developed by US EPA. It meets the five agreed OECD principles on (Q)SAR model.

The Koc and Log Koc of the substance was derived using several methods.

Koc: 6778 L/kg (MCI method); Log Koc: 3.831(MCI method);

Koc: 2.714E+004 L/kg (Kow method); Log Koc: 4.434 (Kow method).

According to EPA the values derived by MCI method are considered more robust and are taken forward for further assessments.

The log Koc of 3.831 indicates that the substance is immobile in soil and sediment according to the classification scheme of McCall et al. (1981).

As additional adsorption/desorption testing cannot be expected to reveal new results with any added value concerning the risk assessment of this substance, additional Annex IX studies on adsorption/desorption are not considered necessary.

[LogKoc: 3.831]