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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
24 January 2012-16 May 2012
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
according to guideline
EU Method A.5 (Surface Tension)
according to guideline
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
GLP compliance:
yes (incl. QA statement)
Type of method:
ring method
Surface tension:
>= 31.4 - <= 31.5 mN/m
21.5 °C
1.02 g/L
C10 AO is surface active
Executive summary:

The surface tension of N,N-dimethyldecylamine N-oxide has been determined to be in the range 31.4 -31.5 mN/m at a concentration of 1.02 g/L at 21.5 +/-0.5 °C using a ring method designed to be compatible with Method A5 Surface Tension of Commission Regulation (EC) No 440/2008 and OECD TG 115. The substance is considered to be surface-active.

Description of key information

The surface tension is 31.4 -31.5 mN/m at 21.5 +/-0.5 °C

Key value for chemical safety assessment

Surface tension:
in mN/m at 20°C and concentration in mg/L:
1 020

Additional information

The surface tension of the substance was measured in a test conducted in accordance with the procedure described in EU Regulation (EC) 440/2008, Annex Part A test A5 (ring method) under GLP [Woolley AJ (2012 )]. Due to the high solubility of the substance, a concentration of 1.02 g/L was used. Measurements were made in duplicate. The derived value for surface tension was 31.4 -31.5 mN/m at 21.5 +/-0.5 °C. The substance is considered to be surface-active.