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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:
17 Jan - 18 Jan 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reference:
Composition 0
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
adopted in 1995
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
adopted in 2008
Deviations:
no
GLP compliance:
no
Type of method:
ring method
Test material information:
Composition 1
Specific details on test material used for the study:
Storage conditions: ambient temperature (10 to 30 °C)
Surface tension:
ca. 69.9 mN/m
Temp.:
20 °C
Conc.:
1 g/L

Results
Table 1 – Surface tension results

Measurement

1

2

3

4

5

6

Time [s]

32

93

153

213

273

335

σ[mN/m] uncorrected

75.38

75.34

75.34

75.37

75.38

75.36

σ[mN/m] corrected according to Zuidema and Waters1

69.87

69.83

69.83

69.86

69.86

69.85

1Zuidema, H., Waters, C.W., Ind. Eng. Chem. Analyt. 13 (1941), p312

The aqueous solution of the test item had a mean surface tension of 69.9 mN/m. This is > 60 mN/m, therefore the test item has no surface active properties.

Description of key information

69.9 mN/m at 20 °C and 1g/L (OECD 115, tensiometric method)

Key value for chemical safety assessment

Surface tension:
69.9
in mN/m at 20°C and concentration in mg/L:
1 003

Additional information