Registration Dossier
Registration Dossier
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EC number: 432-070-7 | 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:
- November 1998-December 1998
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- The study was conducted in accordance with EC Directive, Part A, Methods for the determination of physico-chemical properties, A.5: "Surface Tension".
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- ring method
- Surface tension:
- 72.2 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 000 mg/L
- Remarks on result:
- other: The mean value of the measured surfacre tensions was 77.0. The correction factor from the Harkins-Jordan tables is 0.938.
- Conclusions:
- The surface tension of the test item (1 g/l in distilled water) is 72.2 mN/m at 20°C.
Reference
The surface tension of all measurements was constant (see following table):
| number | surface tension [mN/m] |
| 1 | 76.9 |
| 2 | 76.9 |
| 3 | 76.9 |
| 4 | 77.0 |
| 5 | 77.0 |
| 6 | 77.0 |
| 7 | 77.0 |
| 8 | 77.0 |
| 9 | 77.0 |
| 10 | 77.0 |
| 11 | 77.0 |
| 12 | 76.9 |
| 13 | 77.0 |
| 14 | 76.9 |
| 15 | 77.0 |
The mean value of the measured surface tensions was 77.0. The corrected mean value (correction factor from the Harkins-Jordan tables: 0.938) is 72.2.
Description of key information
The surface tension of the substance (1 g/l in distilled water) is 72.2 mN/m at 20°C.
Key value for chemical safety assessment
- Surface tension:
- 72.2
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
The mean value of the measured surface tensions was 77.0. The corrected mean value (correction factor from the Harkins-Jordan tables: 0.938) is 72.2.
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