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Surface tension

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Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Deviations:
no
GLP compliance:
yes
Type of method:
OECD harmonised ring method
Key result
Surface tension:
47.7 mN/m
Temp.:
20 °C
Conc.:
15 vol%

There were two runs of measurement of ten determinations each. The mean value of the first run is 47.69 mN/m that of the second run 47.76 mN/m.


Surface tension (at 20 °C): 47.7 mN/m


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Conclusions:
The surface tension of the test item 15 % peracetic acid at 20 °C is 47.7 mN/m.
Executive summary:

The surface tension of an aqueous solution containing 15 % of the test item was determined according to OECD guideline no. 115 and EU test method A.5 with the ring method. There were no deviations from the guidelines. 


Surface tension (at 20 °C): 47.7 mN/m

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Deviations:
no
GLP compliance:
yes
Type of method:
OECD harmonised ring method
Key result
Surface tension:
54 mN/m
Temp.:
20 °C
Conc.:
5 vol%

There were two runs of measurement of ten determinations each. The mean value of the first run is 53.25 mN/m that of the second run 54.82 mN/m.


 


Surface tension (at 20 °C): 54.0 mN/m

Conclusions:
The surface tension of the test item 5 % peracetic acid at 20 °C is 54.0 mN/m.
Executive summary:

The surface tension of an aqueous solution containing 5 % of the test item was determined according to OECD guideline no. 115 and EU test method A.5 with the ring method. There were no deviations from the guidelines.


Surface tension (at 20 °C): 54.0 mN/m

Description of key information

Surface tension (Ring method): 54.0 mN/m (5% neat solution), 47.7 mN/m (15% neat solution)

Key value for chemical safety assessment

Surface tension:
47.7
in mN/m at 20°C and concentration in mg/L:
150

Additional information

Surface tension values of 47.7 mN/m and 54.0 mN/m at 20 °C were measured with the ring method for the 15% and 5% products, respectively (Mekelburger, 2007). The lower value is used as key value. This indicates that peracetic acid does not need to be regarded as surface active, because only substances exhibiting a surface tension < 60 mN/m when tested at a concentration of 0.1% are regarded as surface active.