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Physical & Chemical properties

Partition coefficient

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Description of key information

The partition coefficient n-octanol / water (Kow) of Cyclohexane, 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethyl-, homopolymer, caprolactam-blocked was determined according to OECD guideline no. 117 [2004] and EU test method A.8 [2008] with the HPLC method. The result was a series of values for components ranging from log Kow = 8.6 to log Kow = 9.6 at 23.3 °C.

Key value for chemical safety assessment

Log Kow (Log Pow):
9.1
at the temperature of:
23.3 °C

Additional information

For the chemical safety assessment the study results have to be reduced from a range to a single value. The geometric mean of Kow, which is the arithmetic mean of log Kow, was used. In view of the very high lipophilicity, this simplification is expected to have no significant impact on the results of the assessment.