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Diss Factsheets

Physical & Chemical properties

Surface tension

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Link to relevant study record(s)

Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 17 June 2016 to 13 September 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Study was conducted in accordance with EU, OECD test guidelines in an accredited GLP laboratory.
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
May 31, 2008.
Deviations:
not specified
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
July 27, 1995
Deviations:
not specified
GLP compliance:
yes
Type of method:
OECD harmonised ring method
Specific details on test material used for the study:
Purity/composition correction factor: No correction factor required
Test item handling: No specific handling conditions required
Key result
Surface tension:
58.6 mN/m
Temp.:
20 °C
Conc.:
90 vol%

Surface tension of the test item

Measurement

Time passed after transfer test solution to test vessel [minutes]

Surface tension [mN/m]

individual

mean

mean multiplied byΦband Harkins-Jordan

corrected value

 

1

 

15

 

61.6

 

60.11

 

58.6

2

16

60.2

3

17

60.1

4

18

60.2

5

19

60.2

6

20

60.0

1                     Mean calculated from measurements 2 to 6, after equilibrium wasreached.

Conclusions:
The OECD harmonized ring method was applied for the determination of the surface tension of Hepteen Base®.

The surface tension of a test solution at 90% of the test item saturation solubility in water and at 20°C was 58.6 mN/m. According to this, the test item is considered to be surface active.
Executive summary:

A study to determine the surface tension of Hepteen Base® was conducted using OECD harmonised ring in accordance with the following test guidelines in a GLP accredited laboratory.

European Community (EC), EC no. 440/2008, Part A: Methods for the Determination of Physico-Chemical Properties, Guideline A.5: “Surface Tension”, Official Journal of the European Union no. L142, May 31, 2008.

Organization for Economic Co-operation and Development (OECD), OECD Guidelines for the Testing of Chemicals no. 115: "Surface Tension of Aqueous Solutions", July 27, 1995.

 

The surface tension of a test solution at 90% of the test item saturation solubility in water and at 20°C was 58.6 mN/m. According to this, the test item is considered to be surface active.

Description of key information

The surface tension of a test solution at 90% of the test item saturation solubility in water and at 20°C was 58.6 mN/m. According to this, the test item is considered to be surface active.

Key value for chemical safety assessment

Surface tension:
58.6

Additional information

A study to determine the surface tension of Hepteen Base® was conducted using OECD harmonised ring in accordance with the following test guidelines in a GLP accredited laboratory.

European Community (EC), EC no. 440/2008, Part A: Methods for the Determination of Physico-Chemical Properties, Guideline A.5: “Surface Tension”, Official Journal of the European Union no. L142, May 31, 2008.

Organization for Economic Co-operation and Development (OECD), OECD Guidelines for the Testing of Chemicals no. 115: "Surface Tension of Aqueous Solutions", July 27, 1995.