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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
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)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
OECD harmonised ring method
Key result
Surface tension:
69.5 mN/m
Temp.:
20 °C
Conc.:
90 other: % saturated aqueous solution

Time

Surface tension (mN/m)

(minutes)

(calibration corrected)

 

 

A

B

 

 

 

 

 

0

72.2

70.2

 

5

72.2

70.2

 

10

71.2

70.2

 

15

70.2

70.2

 

20

70.2

69.7

 

25

70.7

69.7

 

30

70.2

70.7

 

 

 

 

 

 

Overall mean calibration corrected surface tension = 70.5 mN/m

Harkins-Jordan* corrected value = 69.5 mN/m

 

*: HARKINS, W.D. and JORDAN, H.F., J. Amer. Chem. Soc.52, 1751 (1930).

Conclusions:
The test substance is not considered to be surface active (surface tension >60 mN/m).

Description of key information

69.5 mN/m (90% satuarated aqueous solution at 20°C) (OECD 115, EC A.5)

Key value for chemical safety assessment

Additional information

Surface tension 69.5 mN/m at 20°C and 90% satuarated aqueous solution