Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
24 Dec 2018 - 15 Feb 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:
2016
Deviations:
no
Qualifier:
according to guideline
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

Constituent 1
Chemical structure
Reference substance name:
Reaction mass of (S)-2-[(R)-2-Oxo-4-propyl-1-pyrrolidinyl]butyramide and (S)-2-[(S)-2-Oxo-4-propyl-1-pyrrolidinyl]butyramide
Cas Number:
943986-70-7
Molecular formula:
C11H20N2O2
IUPAC Name:
Reaction mass of (S)-2-[(R)-2-Oxo-4-propyl-1-pyrrolidinyl]butyramide and (S)-2-[(S)-2-Oxo-4-propyl-1-pyrrolidinyl]butyramide
Test material form:
solid
Details on test material:
- Appearance: Off-white solid
- Storage condition of test material: At room temperature protected from light

Results and discussion

Surface tension
Key result
Surface tension:
61.61 mN/m
Temp.:
20 °C
Conc.:
1 g/L

Any other information on results incl. tables

Table: Surface tension measurements

Measurement

Time passed after measurement start
[seconds]

Surface tension
(mN/m)

individual (Harkins-Jordan corrected value)

mean

1

41.81

61.69

61.61

2

67.61

61.63

 

3

93.82

61.60

 

4

120.06

61.56

 

5

146.52

61.54

 

Applicant's summary and conclusion

Conclusions:
The surface tension of an aqueous substance solution at 1 g/L was determined to be 61.61 mN/m (at 20°C).

Executive summary:

The OECD harmonized ring method was used in a GLP study based on EC A.5 and OECD 115. The surface tension of an aqueous substance solution at 1 g/L was determined to be 61.61 mN/m (at 20°C). According to EC A.5 the substance is not surface active.