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Physical & Chemical properties

Partition coefficient

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Description of key information

Log Kow (submission substance): 2.5 at 20°C (QSAR)
Log Kow (silanol hydrolysis product): -0.9 at 20°C (QSAR)

Key value for chemical safety assessment

Log Kow (Log Pow):
2.5
at the temperature of:
20 °C

Additional information

The requirement to test the substance for octanol-water partition coefficient is waived because in contact with water the substance rapidly hydrolyses to form 3-(dihydroxymethylsilyl)propylamine and ethanol. The log Kow of the substance and its silanol hydrolysis product has been calculated using a validated QSAR estimation method.

Ethanol has a measured log Kow of -0.3 (Hansch C 1995).