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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:
Study initiation date: 29 June 2009 Study completion date: 28 October 2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP-Guideline Study
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
adopted on 27 July 1995
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
Directive 92/69/EEC, Official Journal L 383 A 1992
Deviations:
no
GLP compliance:
yes
Type of method:
ring method
Specific details on test material used for the study:
Storage: at approx. 4 °C/ cool; at room temperature
Key result
Surface tension:
72.6 mN/m
Temp.:
20 °C
Conc.:
1 g/L

Details on single measurements:

 

First run

Second run

Number of measurements

10

10

Total measuring time [min:s]

6:07

6:12

Measuring time of the last 10 measurements [min:s]

6:07

6:12

Measurement 1

72.60

72.28

Measurement 2

72.59

72.31

Measurement 3

72.59

72.32

Measurement 4

72.59

72.34

Measurement 5'

72.58

72.37

Measurement 6

72.58

72.38

Measurement 7

72.58

72.39

Measurement 8

72.57

72.41

Measurement 9

72.58

72.42

Measurement 10

72.57

72.42

Mean value [mN/m]1)

72.58

72.36

Surface tension [mN/m]2)

72.68

72.46

Mean value [mN/m]

72.6

1) Mean value of the last ten measurements

2) corrected mean value (measured value x apparatus factor = corrected value)

Conclusions:
Surface tension (OECD 115): 72.6 mN/m at 20°C
Executive summary:

The surface tension of aqueous solutions of the test item was determined according to OECD guideline no. 115 [adopted on 27 July 1995] and EU test method A.5 [Directive 92/69/EEC, Official

Journal L 383 A 1992] with the ring method.

Surface tension (at 20°C): 72.6 mN/m

Description of key information

Surface tension (OECD 115): 72.6 mN/m at 20 °C

Key value for chemical safety assessment

Surface tension:
72.6
in mN/m at 20°C and concentration in mg/L:
1 000

Additional information

The surface tension of aqueous solutions of the test item was determined according to OECD guideline no. 115 [adopted on 27 July 1995] and EU test method A.5 [Directive 92/69/EEC, Official Journal L 383 A 1992] with the ring method.

Surface tension (at 20°C): 72.6 mN/m