Registration Dossier
Registration Dossier
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EC number: 273-321-9 | CAS number: 68956-82-1
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2007-10-29 to 2007-11-02
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- , 1992
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- , adopted 1995
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed 2008-05-26
- Type of method:
- ring method
- Surface tension:
- 70.5 mN/m
- Temp.:
- 20.3 °C
- Conc.:
- 90 other: % saturated solution
- Conclusions:
- The mean surface tension of the test item at 9 mg/L in demineralized water was: 70.5 +/- 0.4 mN/m (corrected value). The test item was not considered as surface-active under the experimental conditions.
Reference
The mean surface tension of the test item at 9 mg/L in demineralised water was: 70.5 +/- 0.4 mN/m (corrected value).
Description of key information
Surface tension of resin acids and rosin acids, cobalt salts (guideline study results): 70.5 mN/m (corrected value) at 20.3 °C.
Key value for chemical safety assessment
- Surface tension:
- 70.5
- in mN/m at 20°C and concentration in mg/L:
- 9
Additional information
The surface tension of resin acids and rosin acids, cobalt salts was determined according to OECD guideline 115, ring method.The measurements were performed in athermo regulatedroom at about 20 °C. Several measurements were made at various times. Three assays were conducted. For two assays the surface tension was noted 20 minutes after thestabilisationof the temperature.Under the described conditions the mean surface tension of the test itemresin acids and rosin acids, cobalt saltsat 9 mg/L in demineralised water was 70.5 mN/m (corrected value).In conclusion,
resin acids and rosin acids, cobalt saltshas no surface active properties.
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