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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:
1997-10-31 - 1997-12-16
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
Directive 92/69/EEC, A.5.
Deviations:
no
GLP compliance:
yes
Type of method:
ring method
Surface tension:
72.8 mN/m
Temp.:
20 °C
Conc.:
1 g/L

The measured values in dependence on time are summarized in the following table.

test no.

time [min]

measured value [mN/m

1

0

72.4

2

5

72.3

3

10

72.3

4

20

72.3

5

35

72.3

6

65

72.4

7

125

72.3

8

185

72.4

9

215

72.4

10

245

72.3

The measured values showed no time dependence.

Mean value: 72.3 mN/m

Mean value with calibration factor: 72.8 mN/m

The test item is not a surfactant.

Conclusions:
A surface tension value of 72.8 mN/m (c=1.0 g/L, at 20.0 °C) was determined in a reliable study conducted according to EU method A. 5. The test item is not classified as surfactant.
Executive summary:

A surface tension value of 72.8 mN/m (c=1.0 g/L, at 20.0 °C) was determined in a reliable study conducted according to EU method A.5. The test item is not classified as surfactant.

Description of key information

A surface tension value of 72.8 mN/m was determined at 20 °C and a concentration of 0.1 g/L.

Key value for chemical safety assessment

Surface tension:
72.8
in mN/m at 20°C and concentration in mg/L:
100

Additional information

The test substance is not considered to be surface active.