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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: 2 December 2009 Study completion date: 16 March 2010
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:
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
Remarks:
GLP in accordance with the currently valid German Chemical Substance Act (Chemikaliengesetz – ChemG), the underlying Commission Directive 2004/10/EC of 11 February 2004 and the relevant OECD decision of the council on 26 November 1997
Type of method:
ring method
Key result
Surface tension:
64.2 mN/m
Temp.:
20.1 °C
Conc.:
1 g/L

Details on measurements:

 

First run

Second run

Number of measurements

10

10

Total measuring time [min:s]

8:37

8:39

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

8:37

8:39

Measurement 1

64.24

65.33

Measurement 2

64.09

65.19

Measurement 3

64.05

65.16

Measurement 4

64.03

65.15

Measurement 5'

64.02

65.13

Measurement 6

64.01

65.12

Measurement 7

63.99

65.12

Measurement 8

63.99

65.11

Measurement 9

63.98

65.10

Measurement 10

63.98

65.10

Mean value [mN/m]1)

64.04

65.15

Surface tension [mN/m]2)

63.69

64.79

Mean value [mN/m]

64.2

1) Mean value of the last 10 measurements

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

Conclusions:
Surface tension (OECD 115): 64.2 mN/m at 20 °C
Executive summary:

The surface tension of aqueous solutions of the test item was determined compliant with GLP 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 20.1 °C): 64.2 mN/m

Description of key information

Surface tension (OECD 115): 64.2 mN/m at 20 °C

Key value for chemical safety assessment

Surface tension:
64.2
in mN/m at 20°C and concentration in mg/L:
1 009

Additional information

The surface tension of aqueous solutions of the test item was determined compliant with GLP 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 20.1 °C): 64.2 mN/m