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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:
may 2018
Reliability:
1 (reliable without restriction)
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
GLP compliance:
yes
Specific details on test material used for the study:
Batch 42964
Expiry (Retest) date: 31 January 2019
Key result
Surface tension:
71.6 mN/m
Temp.:
21 °C
Conc.:
1.02 g/L
Remarks on result:
other: corrected
Surface tension:
70.7 mN/m
Temp.:
21 °C
Conc.:
1.02 g/L
Conclusions:
The surface tension of the test item aqueous solution read on the instrument was 70.7 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 71.6 mN/m.
As the surface tension value was higher than 60 mN/m, Hexamidine diisethionate is classified as a non-surface active substance.

Description of key information

As the surface tension value was higher than 60 mN/m, Hexamidine diisethionate is classified as a non-surface active substance.

Key value for chemical safety assessment

Surface tension:
71.6
in mN/m at 20°C and concentration in mg/L:
1 020

Additional information