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EC number: 212-634-7 | CAS number: 834-12-8
- 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

Boiling point
Administrative data
Link to relevant study record(s)
Description of key information
Boiling point (1 atm, OECD 103) = 346 °C
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 346 °C
Additional information
Two GLP studies are available. M. Meinerling (2006) study has been chosen as Key study while R .Das (2000) as Supporting study.
R .Das (2000) reports discoloration of the sample prior to boiling as evidence of decomposition, and this appears to be confirmed by the DSC in air showing a weak exotherm beginning at 124°C, and then a stronger exotherm beginning at 248°C without any endotherm to indicate boiling. R .Das (2000) reports also that, under nitrogen, only a single exotherm is seen, beginning at 277°C.
In comparison, M. Meinerling (2006) reports repeatable results of boiling at 346°C using the capillary method. This is supported by a DSC under nitrogen from the vapour pressure test (H. Smeykal (2006)) showing a clear endothermic melt from 84.4°C (peak at 87.05°C), followed by a second endotherm beginning ~350°C (peak ~373°C). From ~373°C to ~384°C the curve rises back to about the same level as before the second endotherm, before falling again in the jagged way often seen after the sample has been lost. It is not clear whether this final rise indicates an exothermic event, or merely the waning of an endothermic boiling resulting in the loss of the sample.
The most likely cause of this apparent discrepancy in the information is that the substance used in R .Das (2000) study is less pure than the one used in M. Meinerling (2006), or contains a trace amount of a contaminant that catalyses its thermal degradation. The M. Meinerling (2006) study was chosen as the key study as the DSC from the H. Smeykal (2006) vapour pressure report appears to be consistent with the boiling point findings. Additional evidences of thermal stability of the substance is given in the study by M. Bailey (2006).
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