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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

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Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
weight of evidence
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
Type of method:
other: simple handbook data, therefore no method available
Key result
Melting / freezing pt.:
63.5 °C
Atm. press.:
1 013.25 hPa
Decomposition:
no
Sublimation:
no
Conclusions:
Potassium has a melting point of 63.5 °C.
Executive summary:

The melting point of Potassium is 63.5 °C, as stated in an authoritative handbook.

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
weight of evidence
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
Type of method:
other: simple handbook data, therefore no method available
Key result
Melting / freezing pt.:
63 °C
Decomposition:
no
Sublimation:
no
Remarks on result:
other: no pressure stated
Conclusions:
Potassium has a melting point of 63 °C.
Executive summary:

The melting point of Potassium is 63 °C, as stated in an authoritative handbook.

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
weight of evidence
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
Type of method:
other: simple textbook data, therefore no method available
Key result
Melting / freezing pt.:
64 °C
Decomposition:
no
Sublimation:
no
Remarks on result:
other: no pressure stated
Conclusions:
Potassium has a melting point of 64 °C.
Executive summary:

The melting point of Potassium is 64 °C, as stated in an authoritative scientifally textbook.

Description of key information

Melting point / freezing point of potassium was described in several handbooks/textbooks. Described properties are nearly the same: The melting point of potassium is about 63.5 °C

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
63.5 °C

Additional information