Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report Date:
2017

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
May 31, 2008
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
July 27, 1995
GLP compliance:
yes
Type of method:
OECD harmonised ring method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Remarks:
white to brownish
Details on test material:
Batch 151222

Results and discussion

Surface tension
Key result
Surface tension:
71.3 mN/m
Temp.:
20 °C
Conc.:
1 g/L
Remarks on result:
other:
Remarks:
Mean calculated from five measurements (22-24 minutes after transfer to test solution) after equilibrium

Any other information on results incl. tables

Table 5          
Surface Tension of the Test Item

Measurement

Time passed after transfer test solution to test vessel
[minutes]

Surface tension
(mN/m)

individual

mean

mean multiplied by
Φband Harkins-Jordan corrected value

1

16

66.7

71.31

73.4

2

16

67.6

 

 

3

17

69.2

 

 

4

17

70.2

 

 

5

18

70.0

 

 

6

18

70.6

 

 

7

19

71.2

 

 

8

20

71.2

 

 

9

21

71.9

 

 

10

22

71.1

 

 

11

22

71.3

 

 

12

23

71.2

 

 

13

23

71.6

 

 

14

24

71.5

 

 

1       Mean calculated from measurements 10 to 14, after equilibrium was reached.

Applicant's summary and conclusion

Conclusions:
The OECD harmonized ring method was applied for the determination of the surface tension of CH02906.
The surface tension of a test solution at a concentration of 1 g/L in water and at 20°C was 73.4 mN/m. According to this, the test item is considered not to be surface active.