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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:
04 October 2016 to 19 December 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
1995
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
2008
Deviations:
no
GLP compliance:
yes
Type of method:
OECD harmonised ring method
Key result
Surface tension:
72.2 mN/m
Temp.:
20 °C
Conc.:
1 g/L

Table 1: Surface tension of the test material

Measurement

Time passed* [minutes]

Surface tension [mN/m]

Individual

Mean

Mean multiplied by Φb and HJ**

1

19

72.9

73.1

72.2

2

20

73.1

3

21

73.2

4

22

73.1

5

23

73.0

*After transfer of test solution to test vessel

** Harkins-Jordan corrected value

Conclusions:
Under the conditions of the study, the surface tension of a test solution at a concentration of 1 g/L at 20 °C was 72.2 mN/m.
Executive summary:

The surface tension of a solution of the test material was determined in accordance with the standardised guidelines OECD 115 and EU Method A.5 under GLP conditions using the OECD harmonised ring method.

Under the conditions of the study, the surface tension of a test solution at a concentration of 1 g/L at 20 °C was 72.2 mN/m. Accordingly, the test material is considered not to be surface active.

Description of key information

The surface tension of a test solution at a concentration of 1 g/L at 20 °C was 72.2 mN/m.

Key value for chemical safety assessment

Surface tension:
72.2
in mN/m at 20°C and concentration in mg/L:
1 000

Additional information

The surface tension of a solution of the test material was determined in accordance with the standardised guidelines OECD 115 and EU Method A.5 under GLP conditions using the OECD harmonised ring method. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

Under the conditions of the study, the surface tension of a test solution at a concentration of 1 g/L at 20 °C was 72.2 mN/m. Accordingly, the test material is considered not to be surface active.