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EC number: 236-293-9 | CAS number: 13283-01-7
- 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:
- October, 1937
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- A current of hydrogen was passed over tungsten hexachloride in a glass container inside a small heating furnace. A coil immersed in liquid air was connected to the outlet of the furnace to condense the tungsten hexachloride carried over by the hydrogen. A known amount of gas was passed through the apparatus and the vapor pressure of tungsten hexachloride calculated from the increase in weight of the coil.
- GLP compliance:
- not specified
- Type of method:
- effusion method: by loss of weight or by trapping vaporisate
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0.005 mm Hg
- Temp.:
- 50 °C
- Vapour pressure:
- 0.026 mm Hg
- Temp.:
- 100 °C
- Vapour pressure:
- 0.1 mm Hg
- Temp.:
- 150 °C
- Vapour pressure:
- 25.1 mm Hg
- Conclusions:
- The vapour pressure of tungsten hexachloride was reported to be 0.005 mm Hg (0.67 Pa) at a temperature of 25 °C.
- Executive summary:
A current of hydrogen was passed over tungsten hexachloride in a glass container inside a small heating furnace. A coil immersed in liquid air was connected to the outlet of the furnace to condense the tungsten hexachloride carried over by the hydrogen. A known amount of gas was passed through the apparatus and the vapor pressure of tungsten hexachloride calculated from the increase in weight of the coil:
Vapour pressure of tungsten hexachloride Temperature / °C Vapour pressure / mm Hg 25 0.005 50 0.026 100 0.1 150 25.1 The results conform to a log p vs. 1/T plot with a maximum deviation of measured point from the straight line of 5%. The heat of the vaporisation calculated from the slope of the line is 23800 cal/mol and the equation for the line is log p = 3.1 - 1198/T.
Reference
The results conform to a log p vs. 1/T plot with a maximum deviation of measured point from the straight line of 5%. The heat of the vaporisation calculated from the slope of the line is 23800 cal/mol and the equation for the line is log p = 3.1 - 1198/T.
Description of key information
The vapour pressure of tungsten hexachloride was reported to be 0.005 mm Hg (0.67 Pa) at a temperature of 25 °C.
Key value for chemical safety assessment
- Vapour pressure:
- 0.67 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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