Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
18 Sep 2017 - 08 Jan 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report Date:
2018

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:
liquid
Details on test material:
- Physical appearance: pale yellow liquid
- Storage conditions: at room temperature

Results and discussion

Surface tension
Key result
Surface tension:
55.2 mN/m
Temp.:
20 °C
Remarks on result:
other: Conc.= 90% of test item saturation solubility

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

mean multiplied by 

(1) and Harkins-Jordan corrected value

1

15

54.6

54.7

55.2

2

16

54.8

 

 

3

17

54.9

 

 

4

18

54.6

 

 

5

19

54.7

 

 

(1) The calibration factor

Applicant's summary and conclusion

Conclusions:
The surface tension of an aqueous substance solution at 90% of its saturation solubility was determined to be 55.2 mN/m (at 20°C).

Executive summary:

Using the OECD harmonized ring method in a GLP study according to EC A.5 and OECD 115, the surface tension of an aqueous substance solution at 90% of its saturation solubility was determined to be 55.2 mN/m (at 20°C). According to the EC A.5 guideline the substance is surface active.