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Physical & Chemical properties

Partition coefficient

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Description of key information

partition coefficient (substance): Log Kow = 4.6 at 23°C
partition coefficient (hydrolysis product): Log Kow = -0.63 at 20°C

Key value for chemical safety assessment

Log Kow (Log Pow):
at the temperature of:
23 °C

Additional information

Partition coefficient values of Log KOW = 4.1 and 5.0 at 23°C were determined in a reliable study according to OECD TG 117 guideline and in compliance with GLP. The mean value is Log Kow 4.6 at 23°C and this value is used for risk assessment. The partition coefficient for the silanol hydrolysis product has been calculated using an appropriate predictive method 2-(3,4-epoxyhexyl)ethyl silanetriol (Log KOW= -0.63 at 20°C).