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Environmental fate & pathways

Adsorption / desorption

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Description of key information

The log Koc of 2-phenoxyethanol was determined as 1.61 at 20°C, the Koc was determined as 40.74 L/kg. 

Key value for chemical safety assessment

Koc at 20 °C:
40.74

Additional information

The adsorption coefficient (Koc) onto soil and sewage sludge of 2-phenoxyethanol (purity 99.9%) was determined using HPLC method, according to OECD Guideline 121 and EC Guideline part C.19 (BASF AG, 2001). The test was performed at pH 6, as 2-phenoxyethanol is a weak acid and is un-dissociated at this pH. The adsorption coefficient for 2-phenoxyethanol is 40.74 L/kg (equals log Koc of 1.61). This value is supported by a QSAR calculation yielding a log Koc value of 1.083 (BASF AG, 2007). From the log Koc value, a low adsorption potential of 2-phenoxyethanol on solid materials can be expected.