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Diss Factsheets
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EC number: 200-913-6 | CAS number: 75-89-8
- 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
Viscosity
Administrative data
Link to relevant study record(s)
- Endpoint:
- viscosity
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
- Remarks:
- Measurements were conducted with a method recommended in the current guidelines, and sounds of good scientific quality, however some informations are missing to allow full validation
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to other study
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Test Guideline 114 (Viscosity of Liquids)
- Type of method:
- capillary viscometer (static)
- Key result
- Temp.:
- other: 25.0°C
- Parameter:
- dynamic viscosity (in mPa s)
- Value:
- 1.722
- Conclusions:
- The dynamic viscosity of trifluoroethanol was measured to be 1.722 mPa.s at 25°C.
- Executive summary:
The publication describes experimental viscosity measurements, with capillary viscometer, of aqueous solutions of 2,2,2-trifluoroethanol varying from 0 to 100 %. For the pure substance, the result was found to be 1.722 mPa.s at 25°C.
- Endpoint:
- viscosity
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
- Remarks:
- The study was conducted with a non-standard instrumentation, and experimental data are not sufficient to assess reliability.
- Principles of method if other than guideline:
- capillary electrophoresis
- Key result
- Temp.:
- other: 25.0°C
- Parameter:
- dynamic viscosity (in mPa s)
- Value:
- 1.74
- Conclusions:
- The dynamic viscosity of trifluoroethanol was measured to be 1.74 mPa.s at 25°C.
- Executive summary:
The study was designed to measure some physical properties of ionic liquids in mixture with molecular solvents. Automated capillary electrophoresis system was used. A result of 1.74 mPa.s at 25°C is provided for the solvent TFE alone.
Referenceopen allclose all
Viscosity of selected water-TFEtOH mixtures at 25°C:
wt.% | Viscosity (cP) |
0,00 | 0,8904 |
9,97 | 1,061 |
20,02 | 1,271 |
30,01 | 1,446 |
40,01 | 1,642 |
49,98 | 1,773 |
60,02 | 1,852 |
70,01 | 1,865 |
80,04 | 1,782 |
90,03 | 1,667 |
100,0 | 1,722 |
The results of the present work on TFEtOH alone is also compared with litterature data:
°C | Viscosity (cP) | Ref. |
22,0 | 1,995 | Janz 1972, Riddick 1986 |
25,0 | 1,780* | Evans 1971 |
25,0 | 1,722* | this work |
30,0 | 1,543 | Murto 1966, Kivinen 1967 |
* TFEtOH is highly hygroscopic and changes in density are observed when the liquid is not properly stored.
Description of key information
Experimental data: 1.722 mPa.s at 25°C (Gente 2000), 1.74 mPa.s at 25°C (François 2006)
Key value for chemical safety assessment
- Viscosity:
- 1.73 mPa · s (dynamic)
- at the temperature of:
- 20 °C
Additional information
A published experimental study provides a reliable viscosity value of 1.722 mPa.s at 25°C, and is supported by a very consistent other result (1.74 mPa.s at 25°C), despite this second work was conducted with a non-standard instrumentation. The third reference will not be taken into account, as not consistent with the two previous data, and excessively low regarding the scale of viscosity values.
The retained key value will be the mean of the two consistent results.
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