Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
31 July 2017 to 31 August 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:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
ring method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid
Specific details on test material used for the study:
Batch Number 10013913, Purity >99.9%, Expiry Date 30 November 2018
Analytical grade and technical grade material are identical

Results and discussion

Surface tension
Key result
Surface tension:
ca. 71.3 mN/m
Temp.:
20 °C
Conc.:
1 g/L

Any other information on results incl. tables

Measured surface tension of test item

 Measurement No.  Time expired (min)*  Temperature (°C)  Measured (mN/m)  Corrected1  (mN/m)   Corrected2 (mN/m)
 1 0  20.5  71.6    
 2 15  19.5  71.3    
 3 30  19.5  71.5    
 4 45  19.5  71.6    
 5 60  19.5  71.5    
 6 75  19.5  71.7    
     Mean value  71.5  71.4  71.3

1 corrected for the calibration factor (water)factor: 0.999

2 corrected by Harkins-Jordan-regression (y = 0.7232 * x 1.0756)

*Time expired since the test item solution was transferred into the test vessel

Applicant's summary and conclusion

Conclusions:
The surface tension of an aqueous solution of the test item (1 g/L) was determined to be: 71.3 mN/m at 20 °C.
Executive summary:

The surface tension of an aqueous solution of the test item (1 g/L) was determined to be: 71.3 mN/m at 20 °C.