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Partition coefficient

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Description of key information

The partition coefficient log Pow ≥ 6.0 at temperature 30 °C, pH = 2.5.

Key value for chemical safety assessment

Additional information

The octanol-water partition coefficient of the substance fatty acids, hydrogenated tallow, distn. residues (CAS No. 70084 -84 -5) was determined according to EU Method A.8 and OECD Guideline 117 (HPLC Method). The result obtained was log Pow from 0.814 to > 6.5, however using area normalization, 93.7% gave a log Pow of greater than or equal to 6.0. QSAR data for main single constituents of the substance (EPISUITE KOWWIN v1.68; Rekker method according to D'Amboise and Hanai, 1982) are in the range between 6.96 (KOWWIN, palmitic acid C16) and 8.23 (Rekker, stearic acid C18) and thus they are supporting.