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The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
14 February 2018 to 14 March 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 guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
27 July 1995
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Type of method:
OECD harmonised ring method

Test material

1
Reference substance name:
Wheat, ext.
EC Number:
281-689-7
EC Name:
Wheat, ext.
Cas Number:
84012-44-2
Molecular formula:
UVCB, not applicable
IUPAC Name:
Wheat, ext.
Test material form:
liquid
Details on test material:
Appearance: Straw to yellow syrup
Purity/Composition: Not indicated
Test item storage: At room temperature

Additional information
Test Facility test item number: 209099/A
Purity/Composition correction factor: No correction factor required
Test item handling: No specific handling conditions required
Specific details on test material used for the study:
Appearance: Straw to yellow syrup
Purity/Composition: Not indicated
Test item storage: At room temperature

Additional information
Test Facility test item number: 209099/A
Purity/Composition correction factor: No correction factor required
Test item handling: No specific handling conditions required

Results and discussion

Surface tension
Key result
Surface tension:
ca. 33.2 mN/m
Temp.:
293 K
Conc.:
90 other: % of test item solubility in water at 293 K.

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 below:


Surface Tension of the Test Item

Measurement

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

Surface tension
(mN/m)

individual

mean

mean multiplied by
Φband Harkins-Jordan corrected value

1

15

35.4

35.1

33.2

2

16

35.3

 

 

3

17

34.9

 

 

4

18

35.0

 

 

5

19

35.1

 

 

Applicant's summary and conclusion

Conclusions:
The surface tension of the test substance at a concentration of 90% of the test item saturation solubility in water and at 20°C was 33.2 mN/m, under the conditions of the test.
Executive summary:

In this guideline (OECD 115) study, [conducted with GLP certification], the surface tension of the test substance at a concentration of 90% of the test item saturation solubility in water and at 20°C was 33.2 mN/m, under the conditions of the test.