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Surface tension

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Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017-05-03 to 2017-07-18
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
(1995)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
30 May 2008
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
ring method
Key result
Surface tension:
60.39 mN/m
Temp.:
20 °C
Conc.:
90 other: % saturated solution

Table 1: Surface Tension, Temperature

Measurement No.1)

Time [min]2)

Time [min]3)

Surface tension [mN/m]

Temperature [°C]

1

38.9

14.8

60.46

20.1

2

39.6

15.5

60.44

20.1

3

40.3

16.3

60.43

20.1

4

41.1

17.0

60.40

20.1

5

41.8

17.7

60.42

20.1

6

42.5

18.5

60.38

20.2

7

43.3

19.2

60.38

20.1

8

44.0

20.0

60.36

20.1

9

44.8

20.7

60.33

20.2

10

45.5

21.5

60.31

20.2

Mean

-

-

60.39

0.1

SD[±]

-

-

0.05

0.05

1)     of the last 10 measurements

2)     Time from transfer of the test solution into test vessel until end of each measurement

3)     Time from start of the measurement until end of each measurement

Conclusions:
In the present test conducted according to OECD guideline 115 (1995). The surface tension of a 90% saturated aqueous solution of the test item m-Xylylenebismaleimide was determined to be 60.39 mN/m at 20 °C. Considering that distilled water has a surface tension of 72.75 mN/m at 20 °C and the test item showed a surface tension higher than 60 mN/m under the conditions of this referring method, the test item should be regarded as being non surface-active material.

Description of key information

- OECD 115 guideline Study, GLP, surface tension is 60.39 mN/m.

Key value for chemical safety assessment

Surface tension:
60.39

Additional information

In the present test conducted according to OECD guideline 115 (1995) the surface tension of m-Xylylenebismaleimide was determined using the recommended ring method. A saturated solution of the test item was filled in a test vessel and a platinumring was placed in the test vessel until 3 mm depth of immersion were achieved. The maximum force that can be exerted without separation of the attached liquid layer from the ring was measured. The surface tension of a 90% saturated aqueous solution of the test item m-Xylylenebismaleimide was determined at 20 °C to be 60.39 mN/m. Considering that distilled water has a surface tension of 72.75 mN/m at 20 °C and the test item showed a surface tension higher than 60 mN/m under the conditions of this referring method, the test item should be regarded as being non surface-active material.