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Surface tension

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Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Oct 13, 2006
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Qualifier:
no guideline followed
Principles of method if other than guideline:
Pendant drop
GLP compliance:
no
Type of method:
other: Pendant drop
Key result
Surface tension:
71 mN/m
Temp.:
20 °C
Conc.:
1 g/L

Only one measurement performed since surface tension was greater than 60 mN/m

Conclusions:
The surface tension of a 1 g/L aqueous solution of the test item was measured to be 71 mN/m at 20 oC.
Executive summary:

The surface tension of a 1 g/L aqueous solution of the test item was measured to be 71 mN/m at 20 oC.

Endpoint:
surface tension
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because surface activity is not a desired property of the material

Description of key information

The surface tension of a 1 g/L aqueous solution of the test item was measured to be 71 mN/m at 20 oC. This is not a required measurement as surface activity is not a desired property of the sodium formate.

Key value for chemical safety assessment

Surface tension:
71
in mN/m at 20°C and concentration in mg/L:
1 000

Additional information