Registration Dossier
Registration Dossier
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EC number: 423-640-6 | CAS number: 179911-08-1 AGARBOIS
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 20 September 1996 to 29 October 1996
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 996
- Report date:
- 1996
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
Test material
- Reference substance name:
- N-ethyl-N-(3-methylphenyl)propionamide
- EC Number:
- 423-640-6
- EC Name:
- N-ethyl-N-(3-methylphenyl)propionamide
- Cas Number:
- 179911-08-1
- Molecular formula:
- C12H17NO
- IUPAC Name:
- N-ethyl-N-(3-methylphenyl)propanamide
- Test material form:
- liquid
Constituent 1
Results and discussion
Surface tension
- Key result
- Surface tension:
- 54.5 mN/m
- Temp.:
- 21 °C
- Conc.:
- 1.11 g/L
Any other information on results incl. tables
Calibration facture:
| Reading (mN/m) | Temperature (°C) | Literature Value (mN/m) | Calibration factor |
| 73.0 | 21.0 | 72.6 | 0.995 |
| 72.4 | 21.0 | 72.6 | 1.003 |
| 73.0 | 21.0 | 72.6 | 0.995 |
| 72.5 | 21 .0 | 72.6 | 1.001 |
| 72.5 | 21.0 | 72.6 | 1.001 |
| Mean calibration factor | 0.999 |
Sample solutions reading:
| Time (mins) | Reading (mN/m) | Temperature (°C) |
| 73 | 54.4 | 21.0 |
| 85 | 54.5 | 21.0 |
| 96 | 54.5 | 21.0 |
| 137 | 54.6 | 21.0 |
| 148 | 54.6 | 21.0 |
Applicant's summary and conclusion
- Conclusions:
- The surface tension of a 1.11 g/L aqueous solution of Agarbois has been determinated to be 54.5 mN/m at 21°C +/- 0.5
- Executive summary:
The surface tension of a 1.11 g/L aqueous solution has been determinated to be 54.5 mN/m at 21.0 +/- 0.5 °C by the ring method, based on ISO 304 and method A5 of Commission Directive 92/69/EEC.
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