Registration Dossier
Registration Dossier
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EC number: 243-497-1 | CAS number: 20073-13-6
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Experimental starting date: 29 March 2021
Experimental completion date: 14 May 2021 - Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 022
- Report date:
- 2021
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
Test material
- Reference substance name:
- Methyl [1α,2β(Z)]-(±)-3-oxo-2-(pent-2-enyl)cyclopentaneacetate
- EC Number:
- 243-497-1
- EC Name:
- Methyl [1α,2β(Z)]-(±)-3-oxo-2-(pent-2-enyl)cyclopentaneacetate
- Cas Number:
- 20073-13-6
- Molecular formula:
- C13H20O3
- IUPAC Name:
- methyl 2-[(1S,2S)-3-oxo-2-[(2Z)-pent-2-en-1-yl]cyclopentyl]acetate
Constituent 1
- Specific details on test material used for the study:
- Identification: methyljasmonate
CAS No: 1211-29-6
Appearance/Physical state: clear, colourless liquid
Lot: 0900175
Purity: 99.03 %
Expiry / Retest date: 25 March 2023
Storage conditions: approximately 4 °C, in the dark
Results and discussion
Surface tension
- Surface tension:
- 49 mN/m
- Temp.:
- 20 °C
- Conc.:
- 90 other: saturated
Any other information on results incl. tables
Discussion
On removal from the 20 °C equilibration, the samples were assessed as clear, colourless liquids with excess test item present. After centrifugation the samples were clear, colourless liquids with no visible excess test item and exhibited no definitive Tyndall beam effect.
According to criteria stated in EC Method A.5, substances showing a surface tension lower than 60 mN/m under the conditions of this method should be regarded as being surface active.
Applicant's summary and conclusion
- Conclusions:
- The surface tension of a nominally 90 % saturation of test item in water has been determined to be 49.0 ± 0.5 mN/m at 20.0 ± 0.5 °C. The test item was considered to be surface-active.
- Executive summary:
49.0 ± 0.5 mN/m (90% saturated solution) at 20.0 ± 0.5 °C, using a ring method based on ISO 304, designed to be compatible with Method A.5 Surface Tension of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 115 of the OECD Guidelines for Testing of Chemicals, 27 July 1995. The test item was considered to be surface-active.
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