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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
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EC number: 235-546-0 | CAS number: 12270-13-2
- 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
Auto flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative self-ignition temperature (solids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- September 20 to November 21, 2003
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- other: Guideline VDI 2263, sheet 1 (Grewer-oven)
- Deviations:
- no
- GLP compliance:
- no
- Key result
- Relative self-ignition temperature:
- > 110 °C
- Conclusions:
- The test substance showed an exothermal reaction beginning at 110 °C in air stream.
- Executive summary:
The self-ignition temperature of the test item was investigated according to the guideline VDI 2263, sheet 1 (Grewer-Oven in air stream). The test substance showed an exothermal reaction beginning at 110 °C in air stream.
Reference
Description of key information
The self-ignition temperature of the test item was investigated according to the guideline VDI 2263, sheet 1 (Grewer-Oven, air stream). The test substance showed an exothermal reaction beginning at 110 °C.
However, the information from melting/boiling point testing clearly indicates, that the test substance starts to melt at 90 °C (see IUCLID section 4.2). It is completely molten and discoloured to black at 123 °C (capillary method).
In line with the ECHA Guidance R.7a (December 2016), the terminology of REACH in relation to endpoint 7.12 "Self-ignition temperature" is not very precise. For solids and liquids the term "self-heating" should be used. In general, self-heating occurs only for solids in contact with air (reaction with oxygen with subsequent ignition; see chapter R.7.1.10.7).
In accordance with the ECHA Guidance on the Application of CLP criteria, section 2.11, self-heating substances (and mixtures) are classified in two categories. However, substances with a melting point below 160 °C should not be considered for classification in this class, if the substance is completely molten up to this temperature. This is due to the fact that melting is an endothermic process which drastically reduces the substance-air surface.
Thus, it can be concluded that the test substance should not be considered for classification as self-heating substance, as it is completely molten (and decomposed) at 123 °C.
This information is used in a read-across approach in the assessment of the target substance.
For justification of read-across please refer to the attached read-across report (see IUCLID section 13).
Key value for chemical safety assessment
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.