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EC number: 604-344-8 | CAS number: 143314-17-4
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- accepted calculation method
Data source
Reference
- Reference Type:
- publication
- Title:
- Influence of the anion on the surface tension of 1-ethyl-3-methylimidazolium-based ionic liquids
- Author:
- Hugo F.D. Almeida, Ana Rita R. Teles, José A. Lopes-da-Silva, Mara G. Freire, Joao A.P. Coutinho
- Year:
- 2 012
- Bibliographic source:
- Journal of Chemical Thermodynamics (2012), 54, 49-54
Materials and methods
- Principles of method if other than guideline:
- The surface tension was determined through the analysis of the shape of the pendant drop and measured using a Dataphysics contact angle system OCA-20. Drop volumes of (15 +/- 2) µL were obtained using a Hamilton DS 500/GT syringe connected to a Teflon coated needle placed inside an aluminium air chamber capabled of maintaining the temperature within +/- 0.1 K. The temperature was attained by circulating water in the double jacketed aluminium cell by means of a Julabo F-25 water bath. The surface tensions measurements were performed in the temperature range from (298 to 343) K. The temperatue inside the aluminium chamber, and at which the surface tensions were determined, was measurd with a Pt100 within +/- 0.1 K wich was placed at a distance of approximately 2 cm to the liquid drop. After attaining a specific temerature, the measurments were carried out after 30 min to quarantee the thermal stabilization. Silica gel was kept inside the air chamber aiming at keeping a dry environment and to avoid the adsorption of moisture by the ionic liquid. For the surface tension determination at each temperatur at least six drops were formed and measured. For each drop, an average of 130 images was additionally captured. The analysis of the drop shape was performed with the software modules SCA 20.
In order to validate the equipmen and methodology used, the surface tension of ultra-pure and deionised water, n-decane and n-dodecane were determined from (298 to 343)K and are in clos aggreement with literature values. - GLP compliance:
- not specified
- Type of method:
- other: analysis of the shape of the pendant drop and measured using a Dataphysics contact angle system OCA-20
Test material
- Reference substance name:
- 1-ethyl-3-methylimidazol-3-ium;acetate
- EC Number:
- 604-344-8
- Cas Number:
- 143314-17-4
- Molecular formula:
- C8H14N2O2
- IUPAC Name:
- 1-ethyl-3-methylimidazol-3-ium;acetate
- Test material form:
- liquid
Constituent 1
- Specific details on test material used for the study:
- 1-Ethyl-3-methylimidazolium acetate, Iolitec GmbH
Results and discussion
Surface tensionopen allclose all
- Key result
- Surface tension:
- ca. 47.1 mN/m
- Temp.:
- 298.1 K
- Conc.:
- 15 other: µL
- Surface tension:
- ca. 46.5 mN/m
- Temp.:
- 308.2 K
- Conc.:
- 15 other: µL
- Surface tension:
- ca. 45.9 mN/m
- Temp.:
- 318.2 K
- Conc.:
- 15 other: µL
- Surface tension:
- ca. 45.3 mN/m
- Temp.:
- 328.2 K
- Conc.:
- 15 other: µL
- Surface tension:
- ca. 44.7 mN/m
- Temp.:
- 338.3 K
- Conc.:
- 15 other: µL
Applicant's summary and conclusion
- Executive summary:
The surface tension of 1 -Ethyl-3 -methylimidazolium acetate is approx. 47 mN/m at 25 °C
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