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Physical & Chemical properties

Surface tension

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Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 2014-06-17 to 2014-09-05
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
(2008)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
(1995)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
OECD harmonised ring method
Surface tension:
71.3 mN/m
Temp.:
20 °C
Conc.:
1 g/L

Surface tension measurements

 

Measurement

Time passed after transfer test solution to test vessel [minutes]

Surface tension [mN/m]

individual

mean

mean (1)

 

 

 

 

 

1

15

70.8

 

 

2

16

70.4

70.6

71.3

3

17

70.6

 

 

4

18

70.7

 

 

5

19

70.4

 

 

 

 

 

 

 

(1) multiplied by Φb and Harkins-Jordan corrected value.

Conclusions:
The surface tension of an 1 g/L aqueous solution of the substance has been determined as 71.3 mN/m at 20°C. The substance is not surface active.
Executive summary:

In a GLP-compliant study in accordance with EC A.5 and OECD 115 using the OECD Harmonized ring method, the surface tension of an 1 g/L aqueous solution of the substance has been determined as 71.3 mN/m at 20°C.  Because this is not < 60 mN/m, the substance is not surface active according to the EC A.5 guideline.

Description of key information

In a GLP-compliant study in accordance with EC A.5 and OECD 115 using the OECD Harmonized ring method, the surface tension of an 1 g/L aqueous solution of the substance has been determined as 71.3 mN/m at 20°C.  Because this is not < 60 mN/m, the substance is not surface active according to the EC A.5 guideline.

Key value for chemical safety assessment

Surface tension:
71.3
in mN/m at 20°C and concentration in mg/L:
1 000

Additional information