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EC number: 224-388-8 | CAS number: 4337-75-1
- 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:
- 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Principles of method if other than guideline:
- The test is conducted in accordance with the procedure described in EU Regulation (EC) 440/2008, Annex Part A test A.4.
This method involves placing a quantity of sample in the sample chamber of the glassware and a suitable manometer liquid in the U-tube. The contents of the static glassware are connected to a vacuum system linked with pressure monitors to enable the reading of any pressure/ vacuum on the contents of the stati glassware. The system is evacuated until optimum vacuum is observed. This process is to ensure that there are no residual gasses within the system other than that of the test material.
The glassware is then isolated from the vacuum system. This is immediately followed by isolation of the sample chamber of the glassware so that any gas evolved from the sample will cause a displacement of the manometer liquid. When this is observed the levels of the liquid in the manometer is balanced by introducing a positive pressure using an inert gas (typically nitrogen) or negative pressure (using vacuum). The total pressure on the sample after the levels of the liquid in the manometer is balanced is then registered on the display unit coupled with the pressure transducers.
The glassware is then positioned in the constant temperature bath set to a desired starting temperature. As the static apparatus and its contents approaches temperature equilibrium in the bath, the levels of the manometer liquid are balanced using the posi tive or negative pressure depending on the direction of displacement. This procedure is repeated until the system achieves temperature and pressure equilibrium (i.e. no significant change in temperature or pressure is observed). The temperature and pressure displayed on the pressure monitors are then recorded. The temperature is subsequently set to a higher temperature (usually 5-25°C higher) and the procedure is repeated until enough data points are obtained. - GLP compliance:
- yes (incl. QA statement)
- Type of method:
- static method
- Test no.:
- #1
- Temp.:
- 20 °C
- Vapour pressure:
- 4.21 Pa
- Test no.:
- #2
- Temp.:
- 20 °C
- Vapour pressure:
- 2.91 Pa
- Key result
- Test no.:
- #3
- Temp.:
- 20 °C
- Vapour pressure:
- 3.6 Pa
- Remarks on result:
- other: mean of 2 runs
- Key result
- Remarks on result:
- other: A reading at 50°C was attempted but due to a fault that occurred in the manometer a measurement was not possible
- Conclusions:
- Experimental vapour pressure of SMLT was determined to be 3.6 Pa at 20°C (mean of 2 runs)
- Executive summary:
Experimental vapour pressure of SMLT was determined to be 3.6 Pa at 20°C (mean of 2 runs)
Reference
An initial test run using 7.1 g of sample was started but aborted after testing at 30°C as bubbles were observed in the manometer liquid.
Run 2: 6.4g of sample was transferred to a round bottomed flask and degassed for approximately 41 hours. Vacuum at the start of analysis was 0.009 mbar.
Run 3: 7.3g of sample was transferred to a round bottomed flask and degassed over a total period of 91 hours. The starting vacuum was 0.009 mbar.
A reading at 50°C was attempted but due to a fault that occurred in the manometer a measurement was not possible.
Description of key information
Key Study
Experimental vapour pressure of SMLT was determined to be 3.6 Pa at 20°C (mean of 2 runs)
Supporting Study
The US EPA EPI Suite QSAR model software package (MPBPWIN v.143) was used to predict the vapour pressure of SMLT
The following SMILES string for SMLT was used as input to the model:
O=C(N(CCS(=O)([O-])=O)C)CCCCCCCCCCC.[Na+]
The vapour pressure of the substance was calculated to be 1.9E-13 Pa
Key value for chemical safety assessment
- Vapour pressure:
- 3.6 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.