Registration Dossier
Registration Dossier
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EC number: 206-490-4 | CAS number: 349-76-8
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:
- 06 to 07 Jun 2017
- 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)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Hess. Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany
- Type of method:
- OECD harmonised ring method
- Surface tension:
- 48.8 mN/m
- Temp.:
- 20 °C
- Conc.:
- 476 mg/L
- Remarks on result:
- other: Mean value of two experiments (47.67 mN/m (507 mg/L) and 48.32 mN/m (445 mg/L))
- Remarks:
- The mean value, multiplied by the calibration factor (F= 1.0161)
- Conclusions:
- The test item has a surface tension of 48.8 mN/m at 20 °C.
- Executive summary:
A study was conducted according to OECD Guideline 115: Surface tension of aqueous solutions. and European Commission Council Regulation (EC) No 440/2008, method A.5 to assess the surface tension of the test substance.
The method (OECD harmonized ring method) is based on the measurement of the maximum vertical force, which is necessary to separate a ring being in contact with the surface of the liquid filled in a measuring cup, from the surface of this liquid.
Ten measurements at a temperature of 20°C, approximately every 45 sec., were carried out.
A calibration of the apparatus was carried out using double distilled water at 20°C.
The surface tension of the test substance was determined to be 48.8 mN/m at 20 °C.
Reference
A correction factor (Harkins & Jordan) is included.
Description of key information
A study was conducted according to OECD Guideline 115: Surface tension of aqueous solutions. and European Commission Council Regulation (EC) No 440/2008, method A.5 to assess the surface tension of the test substance.
The method (OECD harmonized ring method) is based on the measurement of the maximum vertical force, which is necessary to separate a ring being in contact with the surface of the liquid filled in a measuring cup, from the surface of this liquid.
A calibration of the apparatus was carried out using double distilled water at 20°C.
The surface tension of the test substance was determined to be 48.8 mN/m at 20 °C.
Key value for chemical safety assessment
- Surface tension:
- 48.8
- in mN/m at 20°C and concentration in mg/L:
- 476
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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