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Physical & Chemical properties

Partition coefficient

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Description of key information

log Kow [4,4,13,13-tetraethoxy-3,14-dioxa-8,9-dithia-4,13-disilahexadecane]: 5.2 (QSAR)

log Kow [(3-{[3-(trihydroxysilyl)propyl]disulfanyl}propyl)silanetriol]: -3.0 (QSAR)

log Kow [ethanol]: -0.3

Key value for chemical safety assessment

Log Kow (Log Pow):
5.2
at the temperature of:
20 °C

Additional information

A predicted log Kow value of 5.2 at 20°C was determined for the substance using a validated QSAR estimation method. The result is considered reliable.

In contact with water, the substance hydrolysis at a moderate rate to form (3-{[3-(trihydroxysilyl)propyl]disulfanyl}propyl)silanetriol and ethanol. The silanol hydrolysis product, (3-{[3-(trihydroxysilyl)propyl]disulfanyl}propyl)silanetriol has a predicted log Kow value of -3 at 20°C using a validated QSAR estimation method.

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

Reference:

Hansch C (1995). Hansch. C., A. Leo and D. Hoekman.1995. Exploring QSAR. Hydrophobic, Electronic, and Steric Constants. ACS Professional Reference Book, American Chemical Society