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Diss Factsheets
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EC number: 230-711-3 | CAS number: 7287-19-6
- 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
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 26 Apr 199 to 23 May 2000
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Version / remarks:
- Julu 1995
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Version / remarks:
- December 1992
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
- Version / remarks:
- August 1996
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Remarks:
- using a Mettler FP90 central processor and a FP81HT MBC cell.
- Key result
- Atm. press.:
- 97.8 kPa
- Decomposition:
- yes
- Decomp. temp.:
- 190.7 °C
- Conclusions:
- The test substance decomposed before the boiling point is reached. In air, weak oxidative decomposition was observed starting around 190 °C. Thereafter, a stronger, thermal decomposition occurs. A determination of the boiling point is therefore not possible.
- Executive summary:
To determine the boiling temperature of the test substance a study was performed according to OECD 103 in compliance with GLP. Due to thermal decomposition of the test substance at a temperature lower than that of the boiling point, it was not possible to determine the boiling point at normal pressure. Using differential scanning calorimetry it could be determined that thermal decomposition starts at about 257 °C under a nitrogen atmosphere and weak oxidative decomposition starts at 190 °C in air .
Reference
In order to interpret the observations made, additional investigations were performed under GLP, using DSC. A Perkin Elmer 7 Series Thermal Analysis System was used. The thermal behavior of the test substance was investigated, not only in air, but also under a nitrogen atmosphere, using a heat rate of 10.0 °C / minute and starting from 25. °C.
- Under nitrogen, decomposition was observed to commence at about 257 °C, with peak maximum of about 351 °C.
- In air, however, a weak, initial decomposition commenced at about 190 °C with a peak maximum of about 250 °C. Subsequently, a second, stronger decomposition with a peak maximum of about 350 °C occurred.
Therefore, the initial decomposition is oxidative in nature. In neither curve was any evidence of boiling observed.
Description of key information
The substance decomposes before boiling at about 190 °C, OECD 103, DSC, Das R, 2000.
Key value for chemical safety assessment
- Temperature of decomposition (state purity):
- 190 °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.