Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
22 January 2018 - 02 August 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report Date:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
2016
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
1995
Deviations:
no
GLP compliance:
yes
Type of method:
OECD harmonised ring method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Details on test material:
Physical appearance: white powder
Storage conditions: at room temperature
Specific details on test material used for the study:
Water solubility > 1 g/L

Results and discussion

Surface tension
Key result
Surface tension:
59.72 N/m
Temp.:
20 °C
Conc.:
1 g/L
Remarks on result:
other: mean value (n=5)

Any other information on results incl. tables

Table: Surface tension measurements

Measurement

Time passed measurement start
[seconds]

Surface tension [mN/m]

individual (Harkins-Jordan corrected values)

 mean (1)

1

38.86

59.66

59.72

2

65.24

59.74

3

91.55

59.73

 

4

118.60

59.74

 

5

144.38

58.75

 

(1) Mean = Harkins-Jordan corrected.

Applicant's summary and conclusion

Conclusions:
The surface tension of an aqueous solution of the substance at a concentration of 1 g/L was determined to be 59.72 mN/m (at 20°C).
Based on this result the substance has to be regarded as surface active.