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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:
2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP study
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
OECD harmonised ring method
Surface tension:
36.6 mN/m
Temp.:
20 °C
Conc.:
90 other: % of the test substance saturation solubility in water

Table 1. Surface tension of PURASOLV®EHL (2-ethylhexyl-S-lactate)

Measurement

Time passed (minutes)

Surface tension (mN/m)

 

 

individual

mean

Mean multiplied by calibration factor and Harkins-Jordan corrected value

1

15

37.4

37.71

36.6

2

16

38.1

 

 

3

17

37.5

 

 

4

18

37.5

 

 

5

19

37.8

 

 

6

20

37.9

 

 

7

21

37.9

 

 

 

1Mean calculated from measurements 3 to 7, after equilibrium was reached.

Conclusions:
PURASOLV®EHL (2-ethylhexyl-S-lactate) is surface active.
Executive summary:

The OECD harmonised ring method was used for the determination of the surface tension of PURASOLV®EHL (2-ethylhexyl-S-lactate). The surface tension of a test solution at 90 % of the test substance solubility in water and at 20 °C was 36.6 mN/m. According to this result, the test substance is considered to be surface active.

Description of key information

The OECD harmonised ring method was used for the detemination of the surface tension of 2-ethylhexyl-S-lactate. The surface tension of a test solution at 90 % of the test substance solubility in water and at 20 °C was 36.6 mN/m. According to this result, the test substance is considered to be surface active.

Key value for chemical safety assessment

Surface tension:
36.6

Additional information