Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 03 June 2016 to 11 November 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report Date:
2016

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
2008
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
Details on test material:
- Appearance: white solid
- Storage conditions: in refrigerator (2-8°C) protected from light

Results and discussion

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

Any other information on results incl. tables

Table: Surface tension measurements

 

Measurement

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

Surface tension [mN/m]

individual

Mean (1)

mean multiplied by
Φb, Harkins-Jordan corrected value

 

 

 

 

 

1

15

72.1

73.0 

73.0 

2

16

72.6

 

 

3

17

72.5

 

 

4

18

73.1

 

 

5

19

72.9

 

 

6

20

73.0

 

 

7

21

73.1

 

 

8

22

72.9

 

 

 

 

 

 

 

(1)  Mean calculated from measurements 4 to 8, after equilibrium was reached.

Applicant's summary and conclusion

Conclusions:
The surface tension at 20°C of an aqueous substance solution at 1 g/L was determined to be 73.0 mN/m.


Executive summary:

Using the OECD harmonized ring method in a GLP study according to EC A.5 and OECD 115, the surface tension at 20°C of an aqueous substance solution at 1 g/L was determined to be 73.0 mN/m. According to the EC A.5 the substance is not surface active.