Registration Dossier

Physical & Chemical properties

Surface tension

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Administrative data

Endpoint:
surface tension
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
supporting study
Study period:
The experiment was started and finished 2009-10-08
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report Date:
2010

Materials and methods

Test guidelineopen allclose all
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:
no
Type of method:
ring method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): Cobalt di(acetate)tetrahydrate
- Molecular formula (if other than submission substance): Co(C2H3O2)2 * 4H2O
- Molecular weight (if other than submission substance): 249.1 g/mol
- Physical state: solid, rose powder
- Storage condition of test material: Keep container tightly closed. Keep container in a well-ventilated area.

Results and discussion

Surface tension
Surface tension:
71.14 mN/m
Temp.:
20 °C
Conc.:
1 g/L
Remarks on result:
other: Due to the fact that the surface tension is higher than 60 mN/m, the test item has no surface-active properties.

Applicant's summary and conclusion

Conclusions:
Under the described conditions the aqueous solution of the test item, cobalt di(acetate) tetrahydrate, at 20°C is sigma = 71.1 mN/m. In conclusion, the test item has no surface active properties.