Registration Dossier
Registration Dossier
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EC number: 909-129-5 | CAS number: -
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- from 31 July 2018 to 13 August 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- 2016
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- 1995
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- OECD harmonised ring method
Test material
- Reference substance name:
- m,α-dimethylstyrene
- EC Number:
- 214-394-9
- EC Name:
- m,α-dimethylstyrene
- Cas Number:
- 1124-20-5
- Molecular formula:
- C10H12
- IUPAC Name:
- 1-isopropenyl-3-methylbenzene
- Reference substance name:
- p,α-dimethylstyrene
- EC Number:
- 214-795-9
- EC Name:
- p,α-dimethylstyrene
- Cas Number:
- 1195-32-0
- Molecular formula:
- C10H12
- IUPAC Name:
- 1-isopropenyl-4-methylbenzene
- Test material form:
- liquid
- Details on test material:
- Appearance: Clear colourless liquid
Storage conditions: At room temperature
Constituent 1
Constituent 2
Results and discussion
Surface tension
- Key result
- Surface tension:
- 70.1 mN/m
- Temp.:
- 20 °C
- Remarks on result:
- other: Conc.= 90% of saturation solubility
Any other information on results incl. tables
Table: Surface tension measurements
Measurement |
Time passed after measurement start |
Surface tension |
|
individual |
mean |
||
1 |
41.89 |
70.25 |
70.09 |
2 |
68.76 |
70.16 |
|
3 |
95.71 |
70.09 |
|
4 |
122.39 |
70.01 |
|
5 |
149.84 |
69.93 |
|
Applicant's summary and conclusion
- Conclusions:
- The surface tension of an aqueous substance solution at 90% of its saturation solubility was determined to be 70.1 mN/m (at 20°C).
- Executive summary:
Using the OECD harmonized ring method in a GLP study based on EC A.5 and OECD 115, the surface tension of an aqueous substance solution at 90% of its saturation solubility was determined to be 70.1 mN/m (at 20°C). The substance is not surface active.
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