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Physical & Chemical properties

Surface tension

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Description of key information

Surface tension (triethoxyhexadecylsilane): not relevant

Silanol hydrolysis product (hexadecylsilanetriol): 56.35 mN/m at 20 °C at suturation concentration

Key value for chemical safety assessment

Additional information

The requirement to test the substance for surface tension is waived because in contact with water the substance rapidly hydrolyses to form hexadecylsilanetriol and ethanol.

Hexadecylsilanetriol has a surface tension value of 56.35 °C in a reliable study using a relevant test method. As such, it is considered to be slightly surface active.