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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 April 2018 to 24 April 2018
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:
1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
2016
Deviations:
no
GLP compliance:
yes
Type of method:
OECD harmonised ring method
Key result
Surface tension:
72.4 mN/m
Temp.:
20 °C
Conc.:
90 vol%

Table 2: Surface Tension of the Test Material

Measurement

Time passed after transfer test solution to test vessel (minutes)

Surface Tension (mN/m)

Individual

Mean

Mean Multiplied by Φb and Harkins-Jordan Corrected Value

1

34

72.6

72.5

72.4

2

35

72.4

3

36

72.5

4

37

72.5

5

38

72.6
Conclusions:
Under the conditions of this study, the surface tension of a test solution at 90 % of the test material saturation solubility in water and at 20 °C was 72.4 mN/m. According to this, the test material is considered not to be surface active.
Executive summary:

The surface tension of the test material was investigated in accordance with the standardised guidelines OECD 115 and EU Method A.5, under GLP conditions.

The OECD harmonised ring method was applied for the determination of the surface tension of the test material.

Under the conditions of this study, the surface tension of a test solution at 90 % of the test material saturation solubility in water and at 20 °C was 72.4 mN/m. According to this, the test material is considered not to be surface active.

Description of key information

Under the conditions of the study, the surface tension of a test solution at 90 % of the test material saturation solubility in water and at 20 °C was 72.4 mN/m. According to this, the test material is considered not to be surface active.

Key value for chemical safety assessment

Surface tension:
72.4

Additional information

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

The OECD harmonised ring method was applied for the determination of the surface tension of the test material.

Under the conditions of this study, the surface tension of a test solution at 90 % of the test material saturation solubility in water and at 20 °C was 72.4 mN/m. According to this, the test material is considered not to be surface active.