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EC number: 205-811-5 | CAS number: 152-97-6
- 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:
- 06 Feb - 07 Feb 2001
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Principles of method if other than guideline:
- lt should be noted that the data provided in this report do not represent the results of a comprehensive study and do not suffice to satisfy data requirements according to EC or OECD guidelines for the testing chemicals
- GLP compliance:
- no
- Other quality assurance:
- other: Not specified
- Type of method:
- effusion method: Knudsen cell
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- < 0.001 Pa
- Remarks on result:
- other: The vapour pressure of 0.001 Pa equals an evaporation rate of 0.014 μg/s
- Conclusions:
- The vapour pressure of lower than 0.001 Pa was measured at 25°C.
- Executive summary:
The vapour pressure was determined using a screening method based on the detection of the evaporation rate from a Knudsen cell of a vapour pressure balance at 25 °C. Since simplified experimental conditions are also acceptable within the scope of this project, the substance was mixed with four other compounds. From all five test substances low or very low vapour pressures were expected. For this reason the experiments consisted in the measurement of the evaporation rate of the mixture from a Knudsen cell a 25 °C. Since the evaporation rate of the mixture was below the value derived from the lower limit of the vapour pressure range recommended for the use of a vapour pressure balance (10-3 Pa, EC Testing Guideline A.4) it can be assumed that the vapour pressure of the mixture is lower than 10-3 Pa. Considering this this fact, the vapour pressure of the single compounds in the mixture has also to be lower than 10-3 Pa.
Therefore, the vapour pressure can be estimated to be lower than 0.001 Pa at 25 °C.
Reference
The measured evaporation rate of the mixture (1.5*10-3 μg/s) at 25 °C is significantly below the calculated value. Therefore, it can be assumed that the vapour pressure of the mixture and consequently of the test substance is lower than the lower limit of the measuring range recommended by the EC Testing Guideline. In addition the mass spectra of the vapour escaping from the Knudsen cell show only masses m/e.
Validity criteria for the measurement of the vapour pressure:
Target condition according to guideline: | Actual condition according to the study: | Validity criteria met: |
At least two vapour pressure and temperature values - and preferably three or more – are required in the range 0 to 50 °C (or 120 to 150 °C). | Temperature tested:25 °C. One measurement was performed. | No |
A log p versus 1 /T curve should be stated. | Raw data is not available | With restrictions |
An estimate of the vapour pressure at 20 or 25 °C should be stated. | Values 25 °C are given. | Yes |
Description of key information
The vapour pressure of lower than 0.001 Pa was measured at 25 °C.
Key value for chemical safety assessment
- Vapour pressure:
- 0.001 Pa
- at the temperature of:
- 25 °C
Additional information
Low or very low vapour pressure, based on the study director's experience was expected. For this reason the experiment consisted in the measurement of the evaporation rate of the mixture from a Knudsen cell at 25 °C. Since the evaporation rate of the mixture was below the value derived from the lower limit of the vapour pressure range recommended for use of a vapour pressure balance (10-3 Pa, EU testing guideline A.4) it can be assumed that the vapour pressure of the mixture was lower than 10-3 Pa. Considering this fact, the vapour pressure of the single compounds in the mixture has also to be lower than 10-3 Pa. Therefore, the vapour pressure could be estimated to be lower than 0.001 Pa at 25°C.
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