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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:
20 March 1997
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline study, to GLP.
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
(of Directive 92/69/EEC)
Deviations:
no
GLP compliance:
yes
Type of method:
ring method
Surface tension:
71.1 mN/m
Temp.:
20.3 °C
Conc.:
1 g/L
Remarks on result:
other: The test substance was regarded to be not surface active.

Reading number  Time (minutes) After 15 minutes' thermal equilibration  Measured surface tension (mN/m) Corrected according to Zuiderna and Waters
 1  2  70.5
 2  6  70.5
 3  8  70.5
 4  13  70.4
    Mean value (mN/m)  70.5
    Mean value x calibration factor (mN/m) 71.1 
Conclusions:
The surface tension of a 1 g/L solution of tetraammineplatinum(II) hydrogen carbonate was determined to be 71.1 mN/m at 20.3 deg C, and is therefore considered not to be surface active.
Executive summary:

In a guideline study, conducted to GLP, the surface tension of a 1 g/L solution of tetraammineplatinum(II) hydrogen carbonate was evaluated by the ring method. The surface tension was determined to be 71.1 mN/m at a temperature of 20.3 deg C. Tetraammineplatinum(II) hydrogen carbonate is considered not to be surface active.

Description of key information

The surface tension of a 1 g/L solution of tetraammineplatinum(II) hydrogen carbonate was determined to be 71.1 mN/m at 20.3 deg C. Tetraammineplatinum(II) hydrogen carbonate is considered not to be surface active (Holldorf, 1997).

Key value for chemical safety assessment

Surface tension:
71.1
in mN/m at 20°C and concentration in mg/L:
1 000

Additional information