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Physical & Chemical properties

Partition coefficient

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Description of key information

Octanol-water partition coefficient (HMDTMP-xK): <-4.7

Key value for chemical safety assessment

Log Kow (Log Pow):
-4.7

Additional information

A log Kow value of -4.7 and -4.1 at 100 ppm and 1000 ppm respectively were reported in a reliable study conducted according to generally accepted scientific principles comparable to an appropriate test guideline. Method has been adequately described in the report. The result is considered to be reliable and has been assigned as key study. This value was read-across to the salt from HMDTMP parent acid. This is supported by a predicted value of ≤-4 using a relevant estimation method.

In a secondary source, log Kow value of -4.4 is reported in a summary of analytical data, full details are not available and the reliability is unassignable. The resut is in agreement with the key study.