Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
from 15 January 2018 to 01 May 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:
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: At room temperature

Results and discussion

Surface tension
Key result
Surface tension:
70.7 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 (1)

1

15

70.1

 

 

2

16

70.0

70.1

70.7

3

17

70.3

 

 

4

18

69.9

 

 

5

19

70.4

 

 

(1) Mean multiplied by the calibration factor and Harkins-Jordan corrected.

Applicant's summary and conclusion

Conclusions:
The surface tension of an aqueous substance solution at 90% of its saturation solubility was determined to be 70.7 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 70.7 mN/m (at 20°C). According to the EC A.5 guideline the substance is not surface active.