Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
December 18, 2013 - July 17, 2014
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: The study was performed in accordance with OECD guideline 115.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2014
Report Date:
2014

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
(1995)
Qualifier:
according to
Guideline:
other: ISO Standard 304-1985
GLP compliance:
no
Type of method:
ring method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
Name of test material (as cited in study report): Disodium Isodecyl Sulfosuccinate
Description: white powder
Storage conditions of test material: at room temperature in well-sealed container
The substance was tested as received.

Results and discussion

Surface tension
Surface tension:
46.1 mN/m
Temp.:
20 °C
Conc.:
1 g/L
Remarks on result:
other: mean of 4 measurements (see table below)

Any other information on results incl. tables

Table: Surface tension results

Surface tension of sample #1

[mN/m]

Surface tension of sample #2

[mN/m]

Equilibrium time from time of preparation

46.1

46.2

4 hours

46.1

46.1

5 hours

Applicant's summary and conclusion

Conclusions:
In a OECD 115 guideline study using the ring method, the surface tension of a 1 g/L aqueous solution of the substance has been determined as 46.1 mN/m at 20°C. Because this is < 60 mN/m, the substance is surface active according to the EC A.5 guideline.