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Diss Factsheets
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EC number: 910-697-1 | CAS number: -
- 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
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- other: handbook data
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- peer reviewed
- Principles of method if other than guideline:
- Data is from handbook, no details are provided.
- GLP compliance:
- no
- Melting / freezing pt.:
- 825 °C
- Atm. press.:
- 102.5 atm
- Decomposition:
- yes
- Remarks:
- - decomposes into CaO and CO2
- Decomp. temp.:
- 825 °C
- Remarks on result:
- other: Calcium carbonate (aragonite)
- Melting / freezing pt.:
- 1 339 °C
- Atm. press.:
- 102.5 atm
- Decomposition:
- yes
- Remarks:
- - decomposes into CaO and CO2
- Decomp. temp.:
- 825 °C
- Remarks on result:
- other: Calcium carbonate (calcite)
- Conclusions:
- A melting point of 825°C is cited for calcium carbonate as aragonite, and 1339°C as calcite.
- Executive summary:
A melting point of 825°C is cited for calcium carbonate as aragonite, and 1339°C as calcite, with decomposition into CaO and CO2, in the reliable Sax handbook.
- Endpoint:
- melting point/freezing point
- Type of information:
- other: handbook data
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- peer reviewed
- Principles of method if other than guideline:
- Data is from handbook, no details are provided.
- GLP compliance:
- not specified
- Melting / freezing pt.:
- 1 403 °C
- Atm. press.:
- 1 013 hPa
- Conclusions:
- The melting point of calcium fluoride is indicated to be 1403°C
- Executive summary:
The melting point of calcium fluoride is indicated to be 1403°C in the reliable Merck Index handbook.
- Endpoint:
- melting point/freezing point
- Type of information:
- other: handbook data
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- peer reviewed
- Principles of method if other than guideline:
- Data is from handbook, no details are provided.
- GLP compliance:
- not specified
- Melting / freezing pt.:
- 1 460 °C
- Conclusions:
- The melting point of calcium sulfate is specified to be 1460°C
- Executive summary:
The melting point of calcium sulfate is specified to be 1460°C in the reliable CRC handbook.
Referenceopen allclose all
Value from generally accepted authoritative secondary source. No data available for pressure
Value from generally accepted authoritative secondary source. No data available for pressure.
Value from generally accepted authoritative secondary source. No data available for pressure
Description of key information
Melting expected in the range 825 - 1460°C for the test substance, with water decomposition followed by partial decomposition of one consituent of the reaction mass.
Key value for chemical safety assessment
Additional information
No experimental study is available on the registered reaction mass.
However, reliable literature data is available for the three constituents. For simplification purpose, a single reference was presented in this dossier for each constituent: the value was selected based on reliability of the data source, and when equivalent, where more information was provided.
Calcium fluoride and calcium sulfate melt respectively at ca 1403°C and 1460°C; calcium carbonate will decompose from 825°C, or higher depending on its crystal structure.
Assuming that the solid-to-liquid transition will follow the behaviour of the constituents, the reaction mass is expected to melt in a multi-phase range. Indeed, the test substance contained water. So, upon heating, vaporisation of this impurity is anticipated, followed by the reactions the decomposition of the calcium carbonate. Therefore no single value can be retained as key for purpose of CSA.
Moreover, it should be noted that experimental testing would be difficult to perform, considering that the applicability range of the different methods cited in the OECD guideline goes only up to 1273 K (i.e. 1000°C) in the best case. This means that for higher temperatures, testing would not be technically feasible, or result would have limited accuracy.
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.