Registration Dossier
Registration Dossier
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EC number: 433-100-1 | CAS number: -
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:
- 1999-11-26 to 1999-12-10
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- adopted July 27, 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- December 1992
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- OECD harmonised ring method
- Key result
- Surface tension:
- 68 mN/m
- Temp.:
- 20 °C
- Conc.:
- 400 mg/L
- Conclusions:
- In conclusion, the surface tension of an aqueous solution of the test substance (EC: 433-100-1) at 90 % of the saturation concentration was determined to be 68 mN/m at 20 °C ± 0.5 °C.
- Executive summary:
The determination of the surface tension of an aqueous solution of the test substance (EC: 433-100-1) was based on OECD guideline No. 115 and EU method A.5. The determination of the surface tension was accomplished by means of a tensiometer based on the ring method of Lecomte de Noüy. The force which is required to withdraw a horizontally suspended ring from the surface of the solution was measured. The surface tension of an aqueous solution of the test substance (EC: 433-100-1) at 90 % of the saturation concentration was determined to be 68 mN/m at 20 °C ± 0.5 °C. Based on the criteria as outlined in the guidelines, it was concluded that the test substance (EC: 433-100-1) should not be regarded as a surface active material.
Reference
Description of key information
The surface tension of an aqueous solution of the test substance (EC: 433-100-1) at 90 % of the saturation concentration was determined to be 68 mN/m at 20 °C ± 0.5 °C. Based on the criteria as outlined in the guidelines, it was concluded that the test substance (EC: 433-100-1) should not be regarded as a surface active material.
Key value for chemical safety assessment
- Surface tension:
- 68
Additional information
The determination of the surface tension of an aqueous solution of the test substance (EC: 433-100-1) was based on OECD guideline No. 115 and EU method A.5. The determination of the surface tension was accomplished by means of a tensiometer based on the ring method of Lecomte de Noüy. The force which is required to withdraw a horizontally suspended ring from the surface of the solution was measured. The surface tension of an aqueous solution of the test substance (EC: 433-100-1) at 90 % of the saturation concentration was determined to be 68 mN/m at 20 °C ± 0.5 °C. Based on the criteria as outlined in the guidelines, it was concluded that the test substance (EC: 433-100-1) should not be regarded as a surface active material.
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