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Partition coefficient

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Description of key information

The QSAR determination of the logarithmic octanol-water partition coefficient for tetrasodium hydrogen 2-phosphonatobutane-1,2,4-tricarboxylate using the model KOWWIN included in the Estimation Program Interface (EPI) Suite v4.10 revealed a value of -5.45 of the dissociated form of the substance. The predicted value can be considered reliable yielding a useful result for further assessment.

Key value for chemical safety assessment

Log Kow (Log Pow):
at the temperature of:
25 °C

Additional information

The corresponding parent acid 2-phosphonobutane-1,2,4-tricarboxylic acid has a calculated log Kow of -1.66 for the non-water based substance.