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EC number: 208-577-2 | CAS number: 533-75-5
- 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:
- 27 September 2016 to 20 February 2017
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Remarks:
- The measured vapour pressures are outside the measuring range of the vapour pressure balance. Nevertheless as the vapour pressure values above 1 Pa could be detected properly by the vapour pressure balance, the values can be used for the evaluation.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- GLP compliance:
- no
- Type of method:
- effusion method: vapour pressure balance
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 2 Pa
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 3.4 Pa
- Key result
- Temp.:
- 50 °C
- Vapour pressure:
- 33 Pa
- Transition / decomposition:
- no
- Conclusions:
- Vapour pressure values of 2.0 Pa (at 20 °C), 3.4 Pa (at 25 °C) and 33.0 Pa (at 50 °C) were determined for the test substance according to E.U. Method A.4.
Reference
Thermal Stability results
In the temperature range of 40 - 70 °C an endothermic effect (melting), was observed. No further thermal effects were observed up to the maximum test temperature of 300 °C.
Effusion method: Vapour pressure balance results
The vapour pressure was measured in the temperature range of 27 to 58 °C. The measured vapour pressure values together with the measured temperatures are listed in the following table.
Results of the Effusion method
No. |
Temperature / °C |
Vapour pressure / Pa |
1 |
27 |
4.19 × 100 |
2 |
32 |
6.17 × 100 |
3 |
38 |
1.37 × 101 |
4 |
43 |
1.51 × 101 |
5 |
48 |
2.69 × 101 |
6 |
53 |
4.59 × 101 |
7 |
58 |
1.07 × 102 |
The measured vapour pressures are outside the measuring range (10 -3 to 1 Pa) of the vapour pressure balance. Nevertheless as the vapour pressure values above 1 Pa could be detected properly by the vapour pressure balance, the values can be used for the evaluation.
From the measured data points of the vapour pressure curve the constants A and B of the Antoine equation can be derived by regression of the data points to
A = 13.3737
B = -3830.91
The vapour pressure values of the test item calculated by interpolation and 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 and OECD Test Guideline 104 (2006) are shown in the table below.
Calculated vapour pressure values for 20, 25 and 50 °C
Temperature / °C |
Vapour pressure / Pa |
20 |
2.0 × 100 |
25 |
3.4 × 100 |
50 |
3.3 × 101 |
Final Results
The vapour pressure of the test item was calculated by interpolation and 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 and OECD Test Guideline 104 (2006). The resulting vapour pressures are 2.0, 3.4 and 33 Pa, respectively.
Description of key information
Vapour pressure: 2.0 Pa at 20 °C, 3.4 Pa at 25 °C, and 33.0 Pa at 50 °C (EU Method A.4, effusion method: vapour pressure balance)
Key value for chemical safety assessment
- Vapour pressure:
- 3.4 Pa
- at the temperature of:
- 25 °C
Additional information
According to Regulation EC No. 440/2008 Method A.4, the vapour pressure values of the test item for the temperatures 20, 25 and 50 °C were calculated by extrapolation.
The measured vapour pressures were outside the measuring range of the vapour pressure balance. Nevertheless as the vapour pressure values above 1 Pa could be detected properly by the vapour pressure balance, the values were used for the evaluation.
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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