Registration Dossier
Registration Dossier
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EC number: 605-460-1 | CAS number: 167004-78-6
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guidelineopen allclose all
- 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:
- ring method
Test material
- Reference substance name:
- Phosphinic acid, P-[3-(acetyloxy)-3-cyanopropyl]-P-methyl-, butyl ester
- EC Number:
- 605-460-1
- Cas Number:
- 167004-78-6
- Molecular formula:
- C11 H20 N O4 P
- IUPAC Name:
- Phosphinic acid, P-[3-(acetyloxy)-3-cyanopropyl]-P-methyl-, butyl ester
- Test material form:
- liquid: viscous
Constituent 1
Results and discussion
Surface tension
- Key result
- Surface tension:
- 45.6 mN/m
- Temp.:
- 21 °C
- Conc.:
- 1 g/L
- Remarks on result:
- other: temperatur +/- 0.5°C, solution in bidistilled water
Any other information on results incl. tables
Results
The last five measured values were used to calculate the mean value of the surface tension for each determination. In the table below these measured data together with the corresponding test time and the mean values are summarized. All measured values are automatically corrected according to Harkins-Jordan by the application software. The mean value of each determination is finally rounded to two decimals by the software.
The age of the test solutions at the beginning of the measurement was 34 minutes for the first test solution and 48 minutes for the second test solution. The age of the test solution is defined as the period of time from the preparation of the solution to the recording of the surface tension value.
| Maesurement (Sample) [#] | Time [sec] | age of solution [mm:ss] | Measured value [mN/m] | Mean [mN/m] | Calibration factor [1] | Surface tension [mN/m] |
| 1 | 75.5 | 35:15 | 44.8965 | 44.87 | 1.0185 | 45.70 |
| 106.8 | 35:46 | 44.8885 | ||||
| 130.2 | 36:10 | 44.8805 | ||||
| 155.9 | 36:36 | 44.8406 | ||||
| 185.9 | 37:06 | 44.8247 | ||||
| 2 | 72.4 | 49:12 | 44.7927 | 44.75 | 1.0165 | 45.49 |
| 97.6 | 49:37 | 44.7608 | ||||
| 122.0 | 50:02 | 44.7449 | ||||
| 147.2 | 50:27 | 44.7369 | ||||
| 171.7 | 50:51 | 44.7289 |
Mean value (Measurement No. 1 + 2): 45.59 mN/m
Finally the surface tension is rounded to one decimal: 45.6 mN/m
Applicant's summary and conclusion
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