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EC number: 211-020-6 | CAS number: 627-93-0
- 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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- The transpiration method (also called gas saturation) involves passing a steady stream of an inert gas over or through the sample, which is held at constant temperature.
- GLP compliance:
- no
- Type of method:
- gas saturation method
- Temp.:
- 21 °C
- Vapour pressure:
- 2.84 Pa
- Conclusions:
- The vapour pressure of the substance is 2.5 Pa at 20 °C.
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- The transpiration method (also called gas saturation) involves passing a steady stream of an inert gas over or through the sample, which is held at constant temperature.
- GLP compliance:
- no
- Type of method:
- gas saturation method
- Temp.:
- 20 °C
- Vapour pressure:
- 2.53 Pa
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- The method is described in the following article: Hwang, S. M. et al. Isothermal vapor-liquid equilibria for mixtures of 4-methoxyphenol, catechol, and p-cresol. Fluid Phase Equilib. 2000, 172, 183 - 196.
- GLP compliance:
- no
- Type of method:
- static method
- Temp.:
- 100 °C
- Vapour pressure:
- 1 260 Pa
Referenceopen allclose all
An equation is given to calculate the vapor pressure as a function of temperature:
lnP = 337.7/R-97276.2/RT-94.8*ln(T/298.15)/R with R= 8.314472 SI unit and T in in Kelvin. In this equation, P is in Pascals.
An equation is given to calculate the vapor pressure as a function of temperature:
ln(P)=39.9 -11475.0/T-11.4*ln((T/298.15) with T expressed in Kelvin. In this equation, P is in Pascals.
An equation is given to calculate the vapor pressure as a function of temperature:
lnP = 17.9128 -7255.259/(T+37.1978) with T expressed in Kelvin and P expressed in kPa.
Description of key information
The vapour pressure of the substance has been determined for two temperature ranges: 20 to 60 °C and 80 to 170 °C, leading to the modelization (equations) of this end point on these two ranges.
Key value for chemical safety assessment
- Vapour pressure:
- 2.5 Pa
- at the temperature of:
- 20 °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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.

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