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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 20 December 2018 to 28 December 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
2016
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
1995
Deviations:
no
GLP compliance:
yes
Type of method:
OECD harmonised ring method
Specific details on test material used for the study:
water solubility: 0.715 g/L (20°C)
Key result
Surface tension:
50.3 mN/m
Temp.:
20 °C
Remarks on result:
other: Conc.= 90% saturation in water

Table: Surface tension measurements

Measurement

Time passed after measurement start
[seconds]

Surface tension
[mN/m]

individual

mean

1

37.08

50.23

50.3

2

62.51

50.27

 

3

88.11

50.26

 

4

113.79

50.25

 

5

139.37

50.25

 

Conclusions:
The surface tension of an aqueous substance solution at 90% saturation was determined to be 50.3 mN/m (at 20°C).

Executive summary:

The OECD harmonized ring method was used in a GLP study based on EC A.5 and OECD 115. The surface tension of an aqueous substance solution at 90% saturation was determined to be 50.3 mN/m (at 20°C). According to EC A.5 the substance is surface active. The concentration tested was at approximate 0.6 g/L.

Description of key information

The surface tension of an aqueous substance solution at 90% saturation was determined to be 50.3 mN/m (at 20°C).

Key value for chemical safety assessment

Surface tension:
50.3
in mN/m at 20°C and concentration in mg/L:
600

Additional information