Registration Dossier
Registration Dossier
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EC number: 914-479-7 | CAS number: -
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 3-5 April 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline study (EU A.5; OECD TG 115).
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
- Report date:
- 2012
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Type of method:
- ring method
Test material
- Reference substance name:
- Montan waxes, type NaV 101
- IUPAC Name:
- Montan waxes, type NaV 101
- Details on test material:
- Test item: Licomont NaV 101
Constituent 1
Results and discussion
Surface tension
- Surface tension:
- 63.4 mN/m
- Temp.:
- 20 °C
- Conc.:
- 0.02 g/L
Any other information on results incl. tables
The water solubility of the test item is 0.02 g/L (see section 4.8). A solution of 8.8 mg in 0.5 L water was prepared. The solution was stirred at room temperature for 72.5 h and treated with ultrasound for 45 min. The test item did not dissolve completely. Subsequently the solution was filtered. The measurement of the surface tension with the test item was carried out at 19.8 °C.
Measurement 1 2 3 4 5 6
Time (s) 586 648 709 771 832 893
sigma (mN/m) 63.50 63.44 63.35 63.33 63.27 63.24
Mean value: 63.35 mN/m (corrected by Zuidema and Waters)
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:
- The test item solution has a surface tension of 63.4 mN/m at 20 °C.
- Executive summary:
The surface tension of an aqueous test substance solution was determined according to EU A.5 and OECD TG 115.
The test item solution has a surface tension of 63.4 mN/m at 20 °C.
Due to the fact that the surface tension is higher than 60 mN/m, the test item does not have surface-active properties.
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