Registration Dossier
Registration Dossier
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EC number: 611-084-9 | CAS number: 54041-17-7
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- 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)
- Type of method:
- OECD harmonised ring method
- Key result
- Surface tension:
- 58 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 001 mg/L
- Conclusions:
- The surface tension of the aqueous solution of the test item was 58.0 mN/m at 20 °C.
- Executive summary:
The surface tension of the test substance was determined using the OECD harmonized ring method according to the OECD Guideline 115 and European Commission Council Regulation (EC) No 440/2008, Annex, Part A, method A.5.
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 30 sec., were carried out.
A calibration of the apparatus was carried out using double distilled water at 20°C.
The solubility of the test item in water is more than 1 g/L (14 g/L at 20 °C). According to the OECD Guideline and the EEC Regulation solutions of 1 g/L were prepared. The concentrations of the two solutions were determined by HPLC.
The surface tension of the aqueous solution of the test item was 58.0 mN/m at 20 °C.
Reference
Description of key information
The surface tension of the test substance was determined using the OECD harmonized ring method according to the OECD Guideline 115 and European Commission Council Regulation (EC) No 440/2008, Annex, Part A, method A.5.
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. Solutions of 1g/L test item were prepared. Ten measurements at a temperature of 20° C, approximately every 30 sec., were carried out. A calibration of the apparatus was carried out using double distilled water at 20°C.
The surface tension of the aqueous solution of the test item was 58.0 mN/m at 20 °C.
Key value for chemical safety assessment
- Surface tension:
- 58
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
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