Registration Dossier
Registration Dossier
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EC number: 231-119-8 | CAS number: 7440-09-7
Flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- substances / mixtures which in contact with water emit flammable gases
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 2010
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: authoritative handbook
- Principles of method if other than guideline:
- simple handbook data, therefore no test guideline available
- GLP compliance:
- no
- Key result
- Identity of evolved gas:
- other: hydrogen
- Remarks on result:
- vigorous reaction with water and spontaneous ignition of the evolved gas
- Interpretation of results:
- other: Category 1 (substances or mixtures which in contact with water release flammable gases which may ignite spontaneously) based on EU GHS criteria
- Conclusions:
- As with other metals of the alkali group, potassium decomposes in water with the evolution of hydrogen. It catches fire spontaneously on water.
- Executive summary:
As with other metals of the alkali group, potassium decomposes in water with the evolution of hydrogen. It catches fire spontaneously on water as described in this authoritative handbook.
- Endpoint:
- substances / mixtures which in contact with water emit flammable gases
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 2005
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: authoritative handbook
- Principles of method if other than guideline:
- simple handbook data, therefore no test guideline available
- GLP compliance:
- no
- Key result
- Identity of evolved gas:
- other: hydrogen
- Remarks on result:
- vigorous reaction with water and spontaneous ignition of the evolved gas
- Interpretation of results:
- other: Category 1 (substances or mixtures which in contact with water release flammable gases which may ignite spontaneously) based on EU GHS criteria
- Conclusions:
- As with other metals of the alkali group, potassium decomposes in water with the evolution of hydrogen. It catches fire spontaneously on water.
- Executive summary:
As with other metals of the alkali group, potassium decomposes in water with the evolution of hydrogen. It catches fire spontaneously on water as described in this authoritative handbook.
- Endpoint:
- substances / mixtures which in contact with water emit flammable gases
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 2002
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: data from an scientifically textbook
- Principles of method if other than guideline:
- simple textbook data, therefore no test guideline available
- GLP compliance:
- no
- Key result
- Identity of evolved gas:
- other: hydrogen
- Remarks on result:
- vigorous reaction with water and spontaneous ignition of the evolved gas
- Interpretation of results:
- other: Category 1 (substances or mixtures which in contact with water release flammable gases which may ignite spontaneously) based on EU GHS criteria
- Conclusions:
- As with other metals of the alkali group, potassium decomposes in water with the evolution of hydrogen. It catches fire spontaneously on water.
- Executive summary:
As with other metals of the alkali group, potassium decomposes in water with the evolution of hydrogen. It catches fire spontaneously on water as described in this authoritative scientifically textbook.
Referenceopen allclose all
Description of key information
Flammability of potassium was described in several handbooks/textbooks. Described properties are always the same: As with other metals of the alkali group, potassium decomposes in water with the evolution of hydrogen. It catches fire spontaneously on water.
Key value for chemical safety assessment
- Flammability:
- substances and mixtures which in contact with water emit flammable gases
Additional information
Justification for classification or non-classification
As with other metals of the alkali group, potassium decomposes in water with the evolution of hydrogen. It catches fire spontaneously on water, therefore the substance has to be classified as Category 1 (substances or mixtures which in contact with water release flammable gases which may ignite spontaneously) based on EU GHS criteria
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.
