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Physical & Chemical properties

Surface tension

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Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017-10-06
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
27 July 1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
31 May 2008
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
ring method
Key result
Surface tension:
63.1 mN/m
Temp.:
20.1 °C
Conc.:
1 g/L
Remarks on result:
other: corrected mean surface tension as dilution in water with 1 g/L

The test was performed twice at a temperature of 20.1 °C (test 1, 99.8 mg test material in 100 mL) and 20.1 °C (test 2, 100.8 mg test material in 100 mL).

The determined mean values of the measurements:

Test No.

Temperature[°C]

Mean Surface Tension
(measured)
[mN/m]

Corrected Mean Surface Tension[mN/m]

1

20.1

61.2

62.8

2

20.1

61.8

63.4

Mean:

20.1

61.5

63.1

AD:

0.0

0.6

0.6

 

Conclusions:
The surface tension of a 1 g/L dilution of the test substance in water was determined to be 63.1 mN/m at 20.1°C.
Executive summary:

The aim of the study was the determination of the surface tension of the test item in water at 20 °C ± 0.5 °C according to EC method A.5 and OECD 115 using ring method. The test was performed twice. The surface tension of a 1 g/L dilution of the test substance in water was determined to be 63.1 mN/m at 20.1°C. The susbtance is not considered to be surface active.

Description of key information

The surface tension of the test item in water at 20 °C ± 0.5 °C was determined according to EC method A.5 and OECD 115 using ring method. The test was performed twice. The surface tension of a 1 g/L dilution of the test substance in water was determined to be 63.1 mN/m at 20.1°C. It is concluded that the substance is not a surface active substance.

Key value for chemical safety assessment

Surface tension:
63.1
in mN/m at 20°C and concentration in mg/L:
1 000

Additional information