Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 500-240-0 | CAS number: 68958-77-0
- 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:
- 06 May, 2004
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling point/boiling range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Key result
- Decomposition:
- yes
- Decomp. temp.:
- > 200 °C
- Remarks on result:
- other: Boiling of the test substance was not observed below the temperature at which reaction or decomposition started.
- Conclusions:
- Under the conditions of the study, boiling of the substance was not observed below the temperature at which reaction or decomposition started.
- Executive summary:
A study was conducted to evaluate the boiling point of the test substance using the differential scanning calorimeter (DSC) method according to OECD Guideline 103 and EU Method A.2, in compliance with GLP. Both the test substance and an inert reference were heated in a DSC. The difference between the heat flow to the sample and the heat flow to the reference was recorded. Three experiments were performed. Two experiments were performed starting from 25°C and one experiment was performed starting from -40°C (two runs). The results of all experiments were combined for the conclusion. Reaction or decomposition of the test substance was observed above 200°C (473 K). Under the conditions of the study, boiling of the test substance was not observed below the temperature at which reaction or decomposition started (Van der Bann-Treuer, 2004).
Reference
Both the test substance and an inert reference were heated in a DSC. The difference between the heat flow to the sample and the heat flow to the reference was recorded. Three experiments were performed. Two experiments were performed starting from 25°C and one experiment was performed starting from -40°C (two runs).
Experiment 1: At about 114°C a very small effect was observed. An exothermic effect was observed above 200°C. This effect is probably caused by reaction or decomposition of the test substance. After the experiment the test substance, which originally was reddish, highly viscous liquid, appeared to have hardened (glassy). The colour had changed to yellow. The change of the colour of the sample is an indication that the test substance had reacted or decomposed. The test substance had lost 1% of its mass.
Experiment 2: A very small effect was observed at about 88°C. A similar effect was observed during the first experiment (at 114°C). Because it is obvious that melting or boiling did not cause this effect, interpretation of the very small effect is outside the scope of this study. An exothermic effect was observed between 200°C and about 345°C. This effect is probably caused by reaction or decomposition of test substance. Above 345°C an endothermic effect was observed, but at these temperatures the test substance had already reacted or decomposed. After the experiment the sample had a dark brown colour. The change of the colour indicates that the test substance had reacted or decomposed. The test substance had lost 33% of its mass.
Experiment 3: During the first run a shift of base line level (into the endothermic direction), in combination with a small endothermic peak, was observed between -22°C and -2°C. During the second run the same effect was observed between -21°C and -2°C. These effects indicate a glass transition (i.e. a transition of a glassy state to supercooled liquid state). The glass transition temperature of the test substance is evaluated as the midpoint (i.e. the temperature at which the curve value is exactly in the middle between the two extrapolated base lines): for the first and the second run -14°C and -13°C, respectively. After the experiment, the consistency of the sample was unchanged and no change of the mass was observed.
Description of key information
The boiling point was determined using the differential scanning calorimeter (DSC) method according to OECD Guideline 103 and EU Method A.2 (Van der Baan-Treuer 2004).
Key value for chemical safety assessment
Additional information
The test substance degraded before boiling/evaporation, above 200°C (473 K).
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.