Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report Date:
2010

Materials and methods

Test guidelineopen allclose all
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:
OECD harmonised ring method

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Surface tension
Key result
Surface tension:
52.7 mN/m
Temp.:
20 °C
Conc.:
90 other: % saturated aqueous solution of the test item
Remarks on result:
other: mean value

Applicant's summary and conclusion

Conclusions:
Surface tension (at 20°C) = 52.7 mN/m, the test item has to be regarded as surface active.
Executive summary:

The determination of the surface tension of the test item was performed in a GLP test according to EC Method A.5 and OECD Guideline 115. An aqueous solution of the test item was prepared: 115.6 mg of the test item and 100 mL of water were shaken for 36 h at 20 °C to prepare a saturated solution. Afterwards, a 9/10 dilution of this solution in water was prepared. The mean surface tension of the 90 % saturated aqueous solution of the test item was determined as 52.7 mN/m at 20.0°C. Because the test item showed a surface tension below 60 mN/m, the test item has to be regarded as surface active.