Registration Dossier

Physical & Chemical properties

Surface tension

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2018-07-10 - 2018-12-03
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
1995
GLP compliance:
yes (incl. certificate)
Remarks:
2017-03-23
Type of method:
ring method
Specific details on test material used for the study:
Batch: WR 180327A
Expiry date: March 2019
Key result
Surface tension:
63.9 mN/m
Temp.:
20 °C
Conc.:
1 g/L

Mean of three assays

Verification with distilled water

The mean surface tension of distilled water was 72.1 mN/m at 20.0 °C, measurement vessel was considered to be clean and ready for use.

Reference materials

Identification

Dodecylbenzenesulfonic acid, sodium salt

Last validation of the test

10 November 2017*

Periodicity of validation (in months)

12

Results

33.1 mN/m ± 0.1 mN/m

Theoretical value

33.0 mN/m ± 1.7 mN/m

Conformity

Yes

*A tolerance of 10% is accepted to perform the next validation.

 

Identification

Pure isopropanol

Last validation of the test

18 October 2018

Periodicity of validation (in months)

12

Results

20.8 mN/m ± 0.1 mN/m

Theoretical value

21.7 mN/m ± 1.1 mN/m

Conformity

Yes

Conclusions:
The mean surface tension of the test item diluted at 1 g/L in distilled water at 20.0 °C was 63.9 mN/m.
The test item was not considered as surface-active in the experimental conditions used.
Executive summary:

Using the ring method, the surface tension of a 1 g/L Tetrabutylphosphonium chloride solution at 20°C has been determined as 63.9 mN/m. The substance is not surface active according to the criterium in the EC A.5 guideline.

Description of key information

Using the ring method, the surface tension of a 1 g/L Tetrabutylphosphonium chloride solution at 20°C has been determined as 63.9 mN/m. The substance is not surface active according to the criterium in the EC A.5 guideline.

Key value for chemical safety assessment

Surface tension:
63.9
in mN/m at 20°C and concentration in mg/L:
1 000

Additional information

The substance is not surface active according to the criterium in the EC A.5 guideline.