Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Surface tension

Currently viewing:

Administrative data

Link to relevant study record(s)

surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1 (reliable without restriction)
equivalent or similar to guideline
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
not applicable
Principles of method if other than guideline:
The surface tension of the substance was determined by the Wilhelmy plate method, equivalent or similar to OECD 115.
GLP compliance:
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Type of method:
plate method
Key result
Surface tension:
72.75 mN/m
20 °C
500 mg/L

Table: Surface Tension Measurement Data


           Surface tension [mN/m]
 Sample# 0.05% 0.5%


 72.75 1 72.93
  2 72.74 2 72.60
  3 72.76 3 72.27
  Mean value 72.75  72.60
  Std. dev. 0.01  0.33


There is no significant difference between the surface tension values of the 0.50% solution and the 0.05% solution

The substance is not surface active.
Executive summary:

The objective of the study was to evaluate the surface tension of two aqueous solutions of the substance (0.05 and 0.5% w/w) using the Wilhelmy plate method. Mean surface tension values of the 0.50% and the 0.05% solution were 72.60 and 72.75 mN/m. Hence, the substance has no surface activity.

Description of key information

The substance did not have surfactant properties when tested at two concentrations (500 and 5000 mg/L) with the plate method. The results are consistent with those of CB[8], which had a surface tension of 72.7 mN/m in a GLP study using the ring method in accordance with OECD guideline 115 and EU method A5.

Key value for chemical safety assessment

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

Additional information