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EC number: 205-055-6 | CAS number: 132-27-4
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)
- GLP compliance:
- yes
- Type of method:
- ring method
- Surface tension:
- 71.3 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1.055 other: g/L (given as sodium 2-biphenylate tetrahydrate)
- Remarks on result:
- other: not surface active
Reference
Time passed between preparation and the first measurement: 25 minutes
Surface tension:
| Determination | Time expired* [min] |
measured surface tension [mN/m] |
| 1 | 15 | 71.9 |
| 2 | 16 | 72.0 |
| 3 | 17 | 71.9 |
| 4 | 18 | 72.1 |
| 5 | 19 | 72.0 |
* Time passed since the solution was transferred to the measurement vessel
mean surface tension, not corrected: 72.0 mN/m
mean surface tension, corrected for calibration: 71.3 mN/m
mean surface tension corrected using Harkins&Jordan, 1930: 71.3 mN/m
calibration factor: 0.990
Description of key information
not surface active
(EU Method A.5)
Key value for chemical safety assessment
- Surface tension:
- 71.3
- in mN/m at 20°C and concentration in mg/L:
- 1 055
Additional information
(concentration given as sodium 2-biphenylate tetrahydrate)
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