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Physical & Chemical properties

Surface tension

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Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Jun 2006 to Feb 2007
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2007
Report Date:
2007

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
GLP compliance:
yes
Type of method:
ring method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Details on test material:
Sponsor batch no: 151105Purity: 99.9%

Results and discussion

Surface tension
Surface tension:
72.75 mN/m
Temp.:
20 °C
Conc.:
90 vol%

Any other information on results incl. tables

The measured surface tension of pure water at a nominal temperature of 20C was determined to be 73.5mN/m. The literature value at this temperature is 72.75mN/m, and therefore the calibration factor was determined to be 0.9898.

The results for the test substance solution, which was 90% saturated are presented in the table below. The mean measured temperature during the test was 20.1C.

After application of the calibration factor, the mean results was 72.75mN/m.

Surface tension readings at 20C

 Time after filling vessel (min)  Surface tension (mN/m)
 8 73.5 
10  73.5 
 13 73.5 
 15 73.5 
 60 73.5 
 Mean 73.5 

Applicant's summary and conclusion

Conclusions:
The surface tension at 20°C of a 90% saturated solution of Beta Ketosulfide was determined to be 72.75 mN/m, and is therefore not considered to be surface active.
Executive summary:

The experimental procedure followed is described in EC Directive 92/69/EEC Method A5 and OECD Guideline 115. The surface tension at 20C of a 90% saturated solution of Beta Ketosulfide was determined to be 72.75mN/m.