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Diss Factsheets

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
20 September 2019 to 20 September 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 guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
31 May 2008
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
27 July 1995
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
ring method

Test material

Constituent 1
Chemical structure
Reference substance name:
3-tert-butyl-1-(3,5-dicarboxyphenyl)-1H-pyrazol-5-aminium chloride
EC Number:
941-661-3
Molecular formula:
C15H18ClN3O4
IUPAC Name:
3-tert-butyl-1-(3,5-dicarboxyphenyl)-1H-pyrazol-5-aminium chloride
impurity 1
Reference substance name:
Unidentified impurity
IUPAC Name:
Unidentified impurity

Results and discussion

Surface tension
Key result
Surface tension:
72.38 mN/m
Temp.:
20 °C
Conc.:
42.8 mg/L

Applicant's summary and conclusion

Conclusions:
The surface tension value was found to be 72.38 mN/m with 0.14 RSD% at 20°C ± 0.2°C. As the surface tension value of the aqueous solution of the test item (at 90% of saturated level) was greater than 60 mN/m, S194997 is classified as not being a surface active substance.