Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
28 March-27 June 2011
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP compliant study according to guideline

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report Date:
2011

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
(1995)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
(OJEU no. L142, May 31, 2008)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
OECD harmonised ring method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Identification: Neosolue-Aqulio
Molecular formula: C20H36O8
Molecular weight: 404.5
CAS Number: 922165-31-9
Description: Clear colourless to very pale yellow liquid
Batch: TVI-714
Purity: 99.5% (GC)
Test substance storage: At room temperature in the dark
Stability under storage conditions: Stable
Expiry date: 07 October 2012 (Retest date)

Results and discussion

Surface tension
Surface tension:
61.4 mN/m
Temp.:
20 °C
Conc.:
1 g/L

Any other information on results incl. tables

The results of the test on the determination of the surface tension of the test solution are given in the Table below.

Measurement

Time passed [minutes]

Surface tension
[mN/m]

individual

mean

mean multiplied by
Φband Harkins-Jordan corrected value

1

20

59.9

60.9(A)

61.4

2

21

60.7

 

 

3

22

60.9

 

 

4

23

60.8

 

 

5

24

61.0

 

 

6

25

61.1

 

 

(A)Mean calculated from measurements 2 to 6, after equilibrium was reached.

Applicant's summary and conclusion

Conclusions:
Using the OECD harmonized ring method, the surface tension of a test solution at a concentration of 1 g/l in water and at 20°C was determined as 61.4 mN/m. According to this, the test substance is considered not to be surface active.