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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:
05 May - 15 October 2008
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)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
no
GLP compliance:
yes
Type of method:
ring method
Key result
Surface tension:
73.6 mN/m
Temp.:
20 °C
Conc.:
1 g/L

Surface tension of the test substance

Measurement

Time passed [minutes]

Surface tension
[mN/m]

individual

mean

mean multiplied by
Φb and Harkins-Jordan corrected value

1

15

70.9

73.6

73.6

2

16

70.9

3

17

71.0

4

18

71.0

5

19

71.1

Conclusions:
The OECD harmonized ring method was used for the determination of the surface tension of the test substance. The surface tension of a test solution at a concentration of 1 g/l and at 20.2°C was 73.6 mN/m. According to this, the test substance is considered not to be surface active.

Description of key information

The OECD harmonized ring method was used for the determination of the surface tension of the test substance. The surface tension of a test solution at a concentration of 1 g/l and at 20.2°C was 73.6 mN/m. According to this, the test substance is considered not to be surface active.

Key value for chemical safety assessment

Surface tension:
73.6
in mN/m at 20°C and concentration in mg/L:
1 000

Additional information