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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
August 17, 2011 - January 5, 2012
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:
31.9 mN/m
Temp.:
20 °C
Conc.:
1 g/L
Remarks on result:
other: The substance is considered to be surface active.

As the mean surface tension of double distilled water was determined to be 71.2 mN/m, the calibration factor was calculated to be 1.02.

Measurement

Time passed [minutes]

Surface tension [mN/m]

individual

mean

Mean multiplied by calibration factor and Harkins-Jordan corrected value

1

40

32.0

33.1 *

31.9

2

43

31.9

3

44

32.0

4

45

32.1

5

50

32.4

6

55

33.2

7

56

33.3

8

57

33.2

9

58

33.1

10

59

32.9

*Mean calculated from measurements 6 to 10, after equilibrium was reached.

Conclusions:
The OECD harmonized ring method was applied for the determination of the surface tension of the substance, in accordance with OECD 115, EU Method A. 5 and GLP. The surface tension of a test solution at a concentration of 1 g/L at 20°C was 31.9 mN/m. According to this, the substance is considered to be surface active.

Description of key information

The surface tension of a test solution at a concentration of 1 g/L at 20°C was 31.9 mN/m. According to this, the substance is considered to be surface active.

Key value for chemical safety assessment

Surface tension:
31.9
in mN/m at 20°C and concentration in mg/L:
1 000

Additional information

The OECD harmonized ring method was applied for the determination of the surface tension of the substance, in accordance with OECD 115, EU Method A.5 and GLP.