Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
07 Jan 2019 - 14 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:
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:
- Appearance: Off-white powder
- Storage condition of test material: In refrigerator protected from light

Results and discussion

Surface tension
Key result
Surface tension:
60.31 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

40.95

60.72

60.31

2

67.54

60.56

 

3

92.85

60.50

 

4

114.71

59.68

 

5

144.54

60.39

 

6

170.12

60.36

 

7

196.18

60.30

 

8

222.51

60.28

 

9

249.02

60.23

 

*Mean is calculated from measurements 5 to 9, after equilibrium was reached.

Applicant's summary and conclusion

Conclusions:
The surface tension of an aqueous substance solution at 1 g/L was determined to be 60.31 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 60.31 mN/m (at 20°C). According to EC A.5 the substance is not surface active.