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Surface tension

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Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Justification for type of information:
Guideline method conducted in a reliable laboratory within the spirit of GLP, but without CLP certification.
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
GLP compliance:
no
Type of method:
ring method
Key result
Surface tension:
38.5 mN/m
Temp.:
23 °C
Remarks on result:
other: saturated solution

Results:

Sample #

Surface Tension

mN/m

Temperature

oC

Method Used

 

 

 

 

ZWA 5496/100 (Lot #210150084)

(sample is a liquid)

23

du Nouy ring

70 mg ZWA 5496/L deionized water1

38.5

23

du Nouy ring

1 Aqueous solution was saturated in these conditions. The saturated sample was filtrated over a Whatman 595 filter paper to have reproducible results.

Conclusions:
A saturated solution of the test substance was determined to have a surface tension of 38.5 mN/m at 23 °C, using a du Nouy ring method according to OECD Guideline 115. The substance is evaluated as being surface active.

Description of key information

38.5 mN/m at 23 °C; surface active

Key value for chemical safety assessment

Surface tension:
38.5
in mN/m at 20°C and concentration in mg/L:
90

Additional information

A saturated solution of the test substance was determined to have a surface tension of 38.5 mN/m at 23 °C. The substance is evaluated as being surface active.