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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:
28 September 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
The test is conducted in accordance to EU Regulation (EC) 440/2008, Annex Part A test A5 and OECD Test Guideline 115.
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
Type of method:
ring method
Specific details on test material used for the study:
- Batch n°: DR74271215
- Production release date: 30 November 2015
- Expiry date: 30 December 2018
- Purity (on dry basis): 98.2%, water content: 0.05%
Key result
Surface tension:
62.6 mN/m
Temp.:
20 °C
Conc.:
0.9 g/L

Surface Tension Data Run 1

 Solution Age (minutes)  Surface Tension Reading (mN/m)
 0  59.1
 15  61.9
 30  62.1
 45  62.5
 60  62.5
 75  62.5
   

Surface Tension Data Run 2

 Solution Age (minutes)  Surface Tension Reading (mN/m)
 0  62.5
 15  62.6
 30  62.7
 45  62.6
 60  62.3
 75  62.6
 85  62.7

Result : 62.6 mN/m (mean value)

Conclusions:
The surface tension of the test item was determined to be 62.6 mN/m.

Description of key information

The surface tension of the substance was determined in a GLP study according to test method EC A.5 and OECD guideline 115 to be 62.6 mN/m at 20.0°C following the ring method (K1 study, Dekra, 2017).

Key value for chemical safety assessment

Surface tension:
62.6
in mN/m at 20°C and concentration in mg/L:
900

Additional information