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EC number: 682-239-6 | CAS number: 1190931-41-9
- 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
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 05 January 2011 to 20 January 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 011
- Report date:
- 2011
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: OECD 113 (Screening test for thermal stability and stability in air)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- dynamic method
Test material
- Reference substance name:
- 2,2-difluoro-2-{[2,2,4,5-tetrafluoro-5-(trifluoromethoxy)-1,3-dioxolan-4-yl]oxy}acetic acid
- EC Number:
- 682-239-6
- Cas Number:
- 1190931-41-9
- Molecular formula:
- C6HF9O6
- IUPAC Name:
- 2,2-difluoro-2-{[2,2,4,5-tetrafluoro-5-(trifluoromethoxy)-1,3-dioxolan-4-yl]oxy}acetic acid
- Details on test material:
- Sample description according to the CoA:
cC6O4 Acid, sample 240/13
- Substance type: pure organic substance
- Physical state: liquid
- Analytical purity: 99.99% (referred to the organic substance)
- Impurities (identity and concentrations):
HF < 10 ppm,
organic impurity < 150 ppm
water: 1.1 % w/w
- Isomers composition: not reported
- Purity test date: 17-01-2011
- Lot/batch No.: 240/13
- Expiration date of the lot/batch: not reported
- Stability under test conditions: not reported
- Storage condition of test material: Room temperature, protected from moisture and light.
Constituent 1
- Specific details on test material used for the study:
- - Source: Solvay Solexis (manufacturer)
- Lot/batch number of test material: Sample 240/13
- Substance type: pure organic substance
- Physical state: liquid
- Analytical purity: 99.99% (referred to the organic substance)
- Impurities (identity and concentrations):
HF < 10 ppm,
organic impurity < 150 ppm
water: 1.1 % w/w
- Isomers composition: not reported
- Purity test date: 17-01-2011
- Lot/batch No.: 240/13
- Expiration date of the lot/batch: 31 December 2020
Results and discussion
Vapour pressureopen allclose all
- Key result
- Temp.:
- ca. 20 °C
- Vapour pressure:
- ca. 0.16 hPa
- Remarks on result:
- other: Calculated according to the Antoine equation.
- Key result
- Temp.:
- ca. 25 °C
- Vapour pressure:
- ca. 0.26 hPa
- Remarks on result:
- other: Calculated according to the Antoine equation.
- Key result
- Temp.:
- ca. 50 °C
- Vapour pressure:
- ca. 2.5 hPa
- Remarks on result:
- other: Calculated according to the Antoine equation.
Any other information on results incl. tables
Thermal Stability (DSC)
ADSC-measurement in closed glass crucible showed no endothermic or thermal effects up to the final temperature of 250 °C. An additional measurement in an open aluminium crucible showed an endothermic effect in the temperature range of 70 – 100 °C and a second one in the temperature range of 150 – 180 °C with an onset of 166.6 °C (most likely boiling).
Graphical representationsof the DSC analysis are reported (Figure 1 and Figure 2).
Vapour Pressure (Dynamic Method)
The vapour pressure was measured with the dynamic method in the temperature range of 69 °C to 164 °C.The measured vapour pressures at the corresponding temperatures are listed in the following table:
Temperature / °C |
Vapour pressure / hPa |
69.4 |
10.3 |
80.6 |
21.1 |
95.6 |
50.4 |
109.7 |
101.1 |
118.3 |
149.5 |
124.7 |
200.5 |
134.2 |
298.2 |
141.8 |
400.8 |
147.4 |
500.4 |
152.4 |
600.6 |
156.8 |
699.7 |
164.4 |
898.8 |
On figure 3 (attached), the vapour pressure (logarithmic scale) as a function of the inverse temperature (1/T, T in Kelvin) is reported.
The values for 20, 25 and 50 °C are calculated, using the Antoine constants A, B and C. For a better correlation the first measured value was not considered.
Applicant's summary and conclusion
- Conclusions:
- The vapor pressure values calculated through the Antoine equation and based on experimental measurements conducted in the temperature range of 69 °C-164 °C are the following:
0.16 hPa at 20 °C
0.26 hPa at 25 °C
2.50 hPa at 50 °C - Executive summary:
The vapour pressure of the test item C6O4 Acidwas determined under GLPaccording to theEU method A.4. “Vapour pressure: Dynamic method”, to the OECD guideline 104 (2006) “Vapour pressure” and to the OECD guideline 113 (1981) “Screening test for thermal stability and stability in air”.
As a preliminary measurement the determination of the thermal stability was carried out by differential scanning calorimetry (DSC). ADSC-measurement in closed glass crucible showed no endothermic or thermal effects up to the final temperature of 250 °C. An additional measurement in an open aluminium crucible showed an endothermic effect in the temperature range of 70 – 100 °C and a second one in the temperature range of 150 – 180 °C with an onset of 166.6 °C (most likely boiling).
For determining the vapour pressure, the dynamic method was used. According to this method the vapour pressure is measured by determining the boiling point of the test item at various specified pressures between roughly 10 and 1000 hPa. The temperature is measured by a resistance thermometer. Equilibrium is reached when a constant boiling temperature is achieved at a given pressure. After recording this point the pressure is increased step by step and if possible up to the boiling point.
12 measuring points was taken in the temperature range of 69 °C to 164 °C.
Vapour pressure values for 20, 25 and 50 °C were calculated through the Antoine equation using the A,B,C constants as reported in the equation. For a better correlation the first measured value was not considered.
The calculated values for vapor pressure of the test item C6O4 acid are the following:
0.16 hPa at 20 °C
0.26 hPa at 25 °C
2.50 hPa at 50 °C
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