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Physical & Chemical properties

Partition coefficient

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Description of key information

Log Kow (substance): Not relevant
Log Kow (silanol hydrolysis product): -1.87 at 20°C

Key value for chemical safety assessment

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 very rapidly hydrolyses to form ethylsilanetriol and hydrogen chloride. The Log Kow of the silanol hydrolysis product has been calculated using validated QSAR.