Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
April 2019
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report Date:
2019

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
GLP compliance:
yes (incl. certificate)
Type of method:
ring method

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Surface tension
Key result
Surface tension:
ca. 55.4 mN/m
Temp.:
20 °C
Conc.:
0.88 g/L

Applicant's summary and conclusion

Executive summary:

The determination of the surface tension was carried out on the test item, with the use of a Krüss K11 Tensiometer by ring method (OECD 115 method). The surface tension value was found to be 56.0 mN/m at 20°C ± 0.5°C. As the surface tension value of the aqueous solution of the test item (at 0.88 g/L concentration level) was below than 60 mN/m, Dipotassium Glycyrrhizate is classified as a surface active substance.