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EC number: - | CAS number: -
- 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:
- 07 AUG 2020 - 20 OCT 2020
- 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:
- 23 March, 2006
- Qualifier:
- according to guideline
- Guideline:
- other: “Testing Guidelines for Studies of Chemicals”, Section 2.5, “Vapour Pressure Test”
- Version / remarks:
- Notification No. 2019-23, Ministry of Environment, Republic of Korea(13 June, 2019)
- GLP compliance:
- no
- Type of method:
- effusion method: isothermal thermogravimetry
- Test no.:
- #1
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Conclusions:
- The vapour pressure of the test item was estimated to be 2.34E-10 Pa at 298.15 K (25.0 °C).
- Executive summary:
The vapour pressure test was performed according to the OECD guideline 104 in a non-GLP study. As a result of the vapour pressure test according to the effusion method using TGA, the vapour pressures of the test substance was measured to be 4.54, 6.52 and 10.7 Pa at 514.55, 524.05 and 530.08 K and atmospheric pressure (101.3 kPa), respectively. And according to the relation of the vapor pressure pT and the temperature T, the vapor pressure was estimated to be 2.34E-10 Pa at 298.15 K (25.0 °C).
Reference
Regressing log pT vs. log vT
To obtain the specific constants 'C' and 'D' in the regression equation of log pT = C + D ·log vT, naphthalene was analyzed at 40.33, 49.45, 60.23, 70.19 and 80.33 °C(313.48, 322.60, 333.38, 343.34 and 353.48 K), and the regression equation was obtained using the relationship with the vapor pressure according to the literature information. The coefficient of determination(R2) was > 0.99(0.9989). The specific constants 'C' and 'D' were calculated for once every six months.
log pT = 4.6374 + 1.1213 · log vT
The Result of Vapor Pressure
The evaporation rates vT of the test material at 514.55, 524.05 and 530.08 K(241.40, 250.90 and 256.93 °C) were 0.000283, 0.000389 and 0.000601 gcm-2 h-1, respectively. Thus, the vapor pressure pT of the test substance at each temperature was calculated to be 4.54, 6.52 and 10.7 Pa, respectively.
Regressing log pT vs 1/T
The following regression equation was used to obtain the constants 'A' and 'B' in the regression equation of log pT = A + B · 1 / T using the vapor pressure test results. The coefficient of determination(R2) was > 0.95(0.9581).
log pT = 14.771 – 7284.2 * 1/T
The Vapor Pressure Estimated Value at 25.0 °C
The vapor pressure at 298.15 K(25.0 °C) of the test substance obtained by extrapolation according to the relationship between the vapor pressure pT and the temperature T of the test substance was calculated to be 2.34E-10 Pa.
Description of key information
The vapour pressure test was performed according to the OECD guideline 104 in a non-GLP study. As a result of the vapour pressure test according to the effusion method using TGA, the vapour pressures of the test substance was measured to be 4.54, 6.52 and 10.7 Pa at 514.55, 524.05 and 530.08 K and atmospheric pressure (101.3 kPa), respectively. And according to the relation of the vapor pressure pT and the temperature T, the vapor pressure was estimated to be 2.34E-10 Pa at 298.15 K (25.0 °C).
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 25 °C
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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