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Surface tension

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surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable, well-documented study report which meets basic scientific principles.
according to guideline
other: Wilhelmy plate method
Principles of method if other than guideline:
Wilhelmy plate method is used to measure the surface tension using a standardized plate with a ring/plate tensiometer. The plate is moved towards the surface until the meniscus connects with it. The surface tension is calculated from the resulting force. Due to uncertain wetting behavior, the plate can only be used for interfaces under certain limitations.
GLP compliance:
Type of method:
plate method
Key result
Surface tension:
28.4 mN/m
25 °C
100 vol%
The surface tension was 28.4 mN/m at 25 deg C using the Wilhelmy plate method.
Executive summary:

The surface tension was 28.4 mN/m at 25 deg C using the Wilhelmy plate method.

Description of key information

The surface tension of Hydrocarbons, C14-C18, n-alkanes, isoalkanes, cyclics, aromatics (2-30%) at 25°C is 28 to 30 mN/m according to the Wilhelmy plate testing methodology.

Key value for chemical safety assessment

Additional information

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