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:
March 04 - 07, 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
GLP compliance:
yes (incl. certificate)
Remarks:
The Department of Health of the Government of the United Kingdom
Type of method:
ring method
Key result
Surface tension:
28 mN/m
Temp.:
20 °C
Conc.:
1 g/L
Remarks on result:
other:
Remarks:
The test material is surface-active.

Sample Preparation and Analysis. Visual estimation of the water solubility indicated a solubility of 750 g/L therefore a 1g/L solution of the test item in water was prepared for analysis.

The age of the solution and the corresponding surface tension for both runs (after correction for water calibration):

Solution Age (minutes)

Surface Tension Reading (mN/m)

Run 1

0

27.7

30

27.5

60

27.6

90

27.5

120

27.6

Run 2

0

28.5

30

28.2

60

28.3

90

28.3

120

28.4

The test material is considered to be surface-active.

Conclusions:
The test material is considered to be surface-active.

Description of key information

28.0 mN/m at 20 °C (EU A.5, ring method)

Key value for chemical safety assessment

Surface tension:
28
in mN/m at 20°C and concentration in mg/L:
1 000

Additional information