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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:
July 24, 2017
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
GLP compliance:
not specified
Type of method:
ring method
Surface tension:
72.8 mN/m
Temp.:
20 °C
Conc.:
1 g/L

The absolute deviation was 0.2 mN/m.

Rep.#

1

2

Reading #

Temperature

(°C)

Measured surface tension (mN/m)

Temperature

(°C)

Measured surface tension (mN/m)

1

20.0

74.5

20.0

75.0

2

20.1

75.0

20.0

74.8

3

20.0

74.2

20.0

74.4

4

20.0

74.5

20.0

73.7

5

20.0

73.7

20.0

73.4

6

20.0

72.0

20.0

72.0

7

20.0

72.3

20.0

72.0

8

20.0

72.0

20.0

72.5

9

20.0

72.0

20.0

71.6

10

20.0

71.8

20.0

72.0

Mean1

20.0

72.0

20.0

72.0

AD2

0.0

0.1

0.0

0.2

1MeanRep #

Temperature

(°C)

Measured Mean Surface Tension (mN/m)

Φb Corrected Surface Tension (mN/m)

1

20.0

72.0

72.0

2

20.0

72.0

72.0

Mean3

20.0

72.0

72.0

AD4

0.0

0.0

0.0

Conclusions:
The average surface tension was 72.8 mN/m.
Executive summary:

The surface tension of the test substance was determined in an OECD Guideline 115 test. The surface tension of saturated solution at 20 °C was determined to be 72.8 mN/m.

Description of key information

72.8 mN/m at 20 °C (OECD 115, ring method), not surface active substance

Key value for chemical safety assessment

Additional information