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Physical & Chemical properties

Surface tension

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Short summary of results
Qualifier:
equivalent or similar to guideline
Version / remarks:
Wilhelmy Plate method
Principles of method if other than guideline:
The surface tension of a liquid is determined according to the plate method using a K20 of KRUSS. A platinum (Pt) plate is dipped into a vessel containing the liquid sample. Pt is used in order to achieve perfect wetting of the plate by the liquid. When a vertically suspended plate touches a liquid surface or interface, then a force F, which correlates with the surface tension or interfacial tension σ and with the contact angle θ according to the following equation, acts on this plate: σ = F/(L*cos θ). The wetted length L of the plate is equal to its perimeter. To measure the force F, the plate is attached to a force sensor of a tensiometer. For reliable measurements, the viscosity of the liquids should be lower than 10000cps, and this method can be only used when the products have flowability. The results are reported at 25°C.
GLP compliance:
not specified
Type of method:
plate method
Specific details on test material used for the study:
Miramer M1142 = Ethoxylated-o-phenylphenol acrylate (CAS Number: 72009-86-0), Mw = 268g/mol (C17H16O3).
Key result
Surface tension:
42 mN/m
Temp.:
25 °C
Remarks on result:
other: concentration not specified in report

Sample#

Surface Tension

Temperature

Method Used

 

mN/m

°C

 

MIRAMER M1142 (Lot#160607M97)

42.0

25.0

Wilhelmy Plate

Conclusions:
The surface tension of Biphenyl-2-ol, ethoxylated, esters with acrylic acid (Miramer M1142) was determined according to the Wilhelmy Plate method using a K20 of KRUSS. The surface tension of Miramer M1142 was determined to be 42 mN/m at 25oC.
Executive summary:

The surface tension of Biphenyl-2-ol, ethoxylated, esters with acrylic acid (Miramer M1142) was determined according to the Wilhelmy Plate method using a K20 of KRUSS. No specific information were given on guideline or standard (QA), which the study was performed under.  

The surface tension of Miramer M1142 was determined to be 42 mN/m at 25oC.

Description of key information

The surface tension of Biphenyl-2-ol, ethoxylated, esters with acrylic acid (Miramer M1142) was determined according to the Wilhelmy Plate method using a K20 of KRUSS. The surface tension of Miramer M1142 was determined to be 42 mN/m at 25oC.

Key value for chemical safety assessment

Additional information