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EC number: 619-370-5 | CAS number: 98725-11-2
- 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
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2017-05-30 to 2017-08-07
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Version / remarks:
- 2006
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- Version / remarks:
- 1996
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Version / remarks:
- May 30, 2008
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: Knudsen cell
- Key result
- Test no.:
- #1
- Temp.:
- 60.8 °C
- Vapour pressure:
- 0.001 Pa
- Remarks on result:
- other: measured value
- Key result
- Test no.:
- #2
- Temp.:
- 65.8 °C
- Vapour pressure:
- 0.002 Pa
- Remarks on result:
- other: measured value
- Key result
- Test no.:
- #3
- Temp.:
- 70.9 °C
- Vapour pressure:
- 0.004 Pa
- Remarks on result:
- other: measured value
- Key result
- Test no.:
- #4
- Temp.:
- 75.9 °C
- Vapour pressure:
- 0.006 Pa
- Remarks on result:
- other: measured value
- Key result
- Test no.:
- #5
- Temp.:
- 80.9 °C
- Vapour pressure:
- 0.012 Pa
- Remarks on result:
- other: measured value
- Key result
- Test no.:
- #6
- Temp.:
- 85.9 °C
- Vapour pressure:
- 0.021 Pa
- Remarks on result:
- other: measured value
- Key result
- Test no.:
- #7
- Temp.:
- 20 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: extrapolated from the measured values
- Key result
- Test no.:
- #8
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: extrapolated from the measured values
- Key result
- Test no.:
- #9
- Temp.:
- 50 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: extrapolated from the measured values
- Conclusions:
- In the present study conducted according to OECD guideline 104 (2006), the vapour pressure of Compimide 183 was determined using the Knudsen cell. Several vapour pressure values were measured within a temperature range from 61 to 86°C. The vapour pressure of the test item at 20, 25, and 50°C was extrapolated from the measured values. At 20, 25 and 50 °C the vapour pressure of Compimide 183 was determined to be 4.7E-6, 1.0E-5 and 3.2E-4 Pa, respectively.
Reference
Description of key information
- study conducted according to OECD guideline 104 (2006), determination of vapour pressure using the Knudsen-cell, the vapour pressure of Compimide 183 was extrapolated from a measurement at temperatures of 61 - 86°C, the vapour pressure is considered to be 4.7E-6 Pa at 20°C.
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 20 °C
Additional information
The vapour pressure of the test item Compimide 183 was determined by the Effusion method with a Knudsen cell. Before performing the test to determine the vapour pressure of a test item, the thermal behavior of the test item was checked up to a temperature of 200 °C. The test item changed its colour at approx. 56 °C and started to melt. At a temperature of approx. 76 °C the test item was completely molten.
For the main test the sample of the test item was then heated in a small furnace, placed in an evacuated bell jar. Subsquently after the measurement the vapour pressure was derived from the evaporation rate using the Hertz-Knudsen equation.
The test item was brought into the Knudsen cell before the test and was attached to the magnetic suspension balance. After that, the system was closed and the apparatus was evacuated (approximately 1E-06 Pa). A total of 7 segments were prepared for the entire measurement. The series of segments commenced at the lowest desired measuring temperature. While measuring of each single segment, the decrease of weight of the Knudsen cell was measured by the magnetic suspension balance. For further measurements, the temperature was increased in small intervals until the maximum desired temperature value was reached. The vapour pressure was measured in the temperature range of 61 to 86 °C. From the measured data points of the vapour pressure curve the constants A and B of the Antoine equation were derived. The vapour pressure of the test item Compimide 183 calculated by extrapolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C according to Regulation EC No.440/2008 Method A.4. Vapour Pressure, OECD Test Guideline 104 (2006) and EPA OCSPP Test Guideline 830.7950 (1996). The vapour pressure at 20°C was determined to be 4.7E-06 Pa.
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