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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:
Start of experiment: 18 July 2017 End of experiment: 18 July 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
ring method
Specific details on test material used for the study:
Name: FSM-005W
Batch/Lot Number: 170321
CAS No.: 2601-33-4
Description: Colourless liquid
Purity: 19.9%
Expiry date: 20 November 2018
Storage conditions: Refrigerated and protected from light
Surface tension:
32.6 mN/m
Temp.:
21 °C
Conc.:
1.01 g/L

The surface tension of the test item aqueous solution read on the instrument was 32.0 mN/m at 21°C ± 0.5°C using the ring method representing the mean of five

separate measurements. The measured values were corrected with Harkins-Jordan correction factor.

The measured surface tension was multiplied by Φb resulting in a corrected surface tension of 32.6 mN/m.

As the surface tension value was lower than 60 mN/m, FSM-005W is classified as surface active.

Measured surface tension values and equilibrium times

Surface tension (mN/m) Time (sec)
32.03 420
32.02 444
32.02 468
32.01 492
32.01 515
Conclusions:
The determination of the surface tension was carried out on the test item, with the use of a Krüss K11 Tensiometer by ring method. The value was found to be 32.6 mN/m at 21°C ± 0.5°C.
As the surface tension value was lower than 60 mN/m, FSM-005W is classified as surface active.
Executive summary:

The determination of the surface tension was carried out on the test item, with the use of a Krüss K11 Tensiometer by ring method. The value was found to be 32.6 mN/m at 21°C ± 0.5°C, in accordance with Method A.5. “Surface Tension”, Official Journal of the European Union L 142 of 31 May 2008, and OECD Guidelines for Testing of Chemicals, Guideline No. 115, ”Surface Tension of Aqueous Solutions”, adopted 27 July 1995.

Description of key information

The determination of the surface tension was carried out on the test item, with the use of a Krüss K11 Tensiometer by ring method. The value was found to be 32.6 mN/m at 21°C ± 0.5°C, in accordance with Method A.5. “Surface Tension”, Official Journal of the European Union L 142 of 31 May 2008, and OECD Guidelines for Testing of Chemicals, Guideline No. 115, ”Surface Tension of Aqueous Solutions”, adopted 27 July 1995.

Key value for chemical safety assessment

Surface tension:
32.6
in mN/m at 20°C and concentration in mg/L:
1.01

Additional information