Registration Dossier
Registration Dossier
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EC number: 700-093-4 | CAS number: 176969-34-9
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2020
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 020
- Report date:
- 2020
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)
- Remarks:
- Hessisches Ministerium für Umwelt, Klimaschutz, Landwirtschaft und Verbraucherschutz
- Type of method:
- OECD harmonised ring method
Test material
- Reference substance name:
- 3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid
- EC Number:
- 700-093-4
- Cas Number:
- 176969-34-9
- Molecular formula:
- C6H6F2N2O2
- IUPAC Name:
- 3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid
Constituent 1
Results and discussion
Surface tension
- Key result
- Surface tension:
- 70.7 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Remarks on result:
- other: The substance is not surface active according to EU A.5
Any other information on results incl. tables
The measurement was carried out at 20 ° ±0.5
°C.
A correction factor (Harkins & Jordan) is included.
The age of the test solutions at the beginning of the measurement was
1.5 hours for the Test solution 1 and 2.5 hours for the Test solution 2.
The age of the test solution is defined as the period from the
preparation of the solution to the recording of the surface tension
value.
Surface tension of AE 1954999, technical substance measured data
|
Experiment 1 |
Experiment 2 |
||
Time [s] |
σM[mN/m] |
Time [s] |
σM[mN/m] |
|
1. measurement |
80.7 |
70.77 |
71.3 |
69.58 |
2. measurement |
128.8 |
70.77 |
113.1 |
69.59 |
3. measurement |
173.4 |
70.66 |
156.4 |
69.61 |
4. measurement |
218.4 |
70.67 |
200.5 |
69.61 |
5. measurement |
264.0 |
70.62 |
242.9 |
69.58 |
6. measurement |
309.0 |
70.63 |
285.7 |
69.58 |
7. measurement |
354.5 |
70.64 |
329.2 |
69.61 |
8. measurement |
399.5 |
70.65 |
372.1 |
69.62 |
9. measurement |
445.2 |
70.64 |
416.8 |
69.61 |
10. measurement |
491.3 |
70.64 |
459.7 |
69.61 |
Mean σM[mN/m] |
70.67 |
|
69.60 |
|
The mean value (70.14 mN/m) was multiplied by the calibration
factor (F=1.0076)
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
