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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Surface tension

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2010-11-04 to 2010-02-18
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
, 1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
, 2008
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
, signed 2009-10-29
Type of method:
OECD harmonised ring method
Key result
Surface tension:
44.4 mN/m
Temp.:
20 °C
Conc.:
90 vol%
Remarks on result:
other: mean value of six measurements
































Measurement



1



2



3



4



5



6



Time (s)



491



542



793



945



1095



1247



 σ (mN/m)



44.01



44.45



44.08



44.81



44.37



44.55




Mean value:  σ = 44.4 mN/m (corrected by Zuidema and Waters) .


Due to the fact that the surface tension is lower than 60 mN/m, the test item has surface-active properties.

Conclusions:
According to OECD Guideline 115 (1995) and EU Method A.5 (2008), the surface tension of an 90% aqueous solution is 44.4.0 mN/m at 20°C. Hence, the substance has surface-active properties.

Description of key information

The test substance has surface-active properties (44.4 mN/m at 20°C; 90 vol% aqueous solution).

Key value for chemical safety assessment

Surface tension:
44.4
in mN/m at 20°C and concentration in mg/L:
16.2

Additional information