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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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:
5/1/2018 to 21/5/2018
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

Constituent 1
Chemical structure
Reference substance name:
tridecyl 2-hydroxybenzoate
EC Number:
947-975-7
Molecular formula:
C20H32O3
IUPAC Name:
tridecyl 2-hydroxybenzoate
Specific details on test material used for the study:
Identification: Dermol TDSA
Appearance: Colourless to pale yellow clear liquid
Batch: P7202
Purity/Composition: UVCB
Test item storage: At room temperature
Stable under storage conditions until: 11 November 2021 (expiry date)
Additional information
Test Facility test item number: 209078/A
Purity/Composition correction factor: No correction factor required
Test item handling: No specific handling conditions required
Molecular structure: Not indicated
Molecular formula: C20H32O3
Molecular weight: 320
Test Item Characterization
The Sponsor provided to the Test Facility documentation of the identity, purity, composition, and stability for the test item(s). A Certificate of Analysis or equivalent document was provided to the Test Facility and is presented in Appendix 2.

Results and discussion

Surface tension
Key result
Surface tension:
ca. 56.2 mN/m
Temp.:
20 °C
Conc.:
100 vol%

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 inTable 5.

Table 5
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

56.1

56.1

56.2

2

16

55.9

 

 

3

17

56.4

 

 

4

18

56.3

 

 

5

19

55.9

 

 

Applicant's summary and conclusion

Conclusions:
The OECD harmonized ring method was applied for the determination of the surface tension of Dermol TDSA.
The surface tension of a test solution at 90% of the test item saturation solubility in water and at 20°C was 56.2 mN/m. According to this, the test item is considered to be surface active.
Executive summary:

In this guideline (OECD 115) study, [conducted with GLP certification], the OECD harmonized ring method was applied for the determination of the surface tension of Dermol TDSA.

The surface tension of a test solution at 90% of the test item saturation solubility in water and at 20°C was 56.2 mN/m.  According to this, the test item is considered to be surface active.