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Diss Factsheets
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EC number: 206-059-0 | CAS number: 298-14-6
- 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
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Peer-reviewed handbook data
- Principles of method if other than guideline:
- In the peer-reviewed handbook, information on the melting point are reported.
- Type of method:
- other: peer-reviewed handbook data
- Decomposition:
- yes
- Decomp. temp.:
- > 100 °C
- Conclusions:
- When heat above 100 °C, potassium hydrogencarbonate decomposes into potassium carbonate, water and carbon dioxide.
- Executive summary:
When heated, KHCO3decomposes into CO2and H2O. Between 100 and 110 °C a weight loss of about 4% can be noticed. Between 175 and 185oC the conversion into K2CO3is complete after 6 hours. Between 200 and 210oC the conversion is complete after only 2 hours.
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Handbook data, peer reviewed
- Principles of method if other than guideline:
- In the peer-reviewed handbook, information on the melting point are reported.
- GLP compliance:
- not specified
- Type of method:
- other: determination method not reported
- Decomposition:
- yes
- Decomp. temp.:
- ca. 100 °C
- Conclusions:
- The melting point of potassium hydrogencarbonate can not be determined due to decomposition at a temperature of about 100°C.
- Executive summary:
According to the information provided in the peer-reviewed handbook, the melting point of potassium hydrogencarbonate can not be determined due to decomposition at a temperature of about 100°C.
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Database data and handbook data, at least one source peer reviewed
- Principles of method if other than guideline:
- In the peer-reviewed handbook, information on the melting point are reported.
- GLP compliance:
- no
- Type of method:
- other: data from peer-reviewed handbook
- Decomposition:
- yes
- Decomp. temp.:
- 200 °C
- Conclusions:
- Potassium hydrogencarbonate decomposes into potassium carbonate, water and carbon dioxide.
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: data are from peer-reviewed handbook
- Principles of method if other than guideline:
- In the peer-reviewed handbook, information on the melting point are reported.
- Type of method:
- other: peer-reviewed handbook data
- Decomposition:
- yes
- Decomp. temp.:
- > 120 °C
- Conclusions:
- When heated above 120oC, potassium hydrogencarbonate decomposes into potassium carbonate, water, and carbon dioxide.
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Database data and handbook data, at least one source peer reviewed
- Principles of method if other than guideline:
- In the peer-reviewed handbook, information on the melting point are reported.
- GLP compliance:
- not specified
- Type of method:
- other: data from peer-reviewed handbook
- Decomposition:
- yes
- Decomp. temp.:
- 127 °C
- Sublimation:
- no
- Conclusions:
- Thermal decomposition at temperatures above approximately 127°C
Referenceopen allclose all
According to the information provided in the peer-reviewed handbook, the melting point of potassium hydrogencarbonate can not be determined due to decomposition at a temperature of about 100°C.
Description of key information
When heated above 100 °C, potassium hydrogencarbonate begins to decompose into potassium carbonate, water and carbon dioxide.
Key value for chemical safety assessment
Additional information
When heated, KHCO3 decomposes into CO2 and H2O. Between 100 and 110 °C a weight loss of about 4% can be noticed. Between 175 and 185 oC the conversion into K2CO3 is complete after 6 hours. Between 200 and 210 oC the conversion is complete after only 2 hours.
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.