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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Boiling point

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Administrative data

Link to relevant study record(s)

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Endpoint:
boiling 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
Boiling pt.:
759 °C
Atm. press.:
1 013.25 hPa
Decomposition:
no
Conclusions:
Potassium has a boling point of 759 °C.
Executive summary:

The boiling point of potassium is 759 °C as stated in an authoritative handbook.

Endpoint:
boiling 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
Boiling pt.:
765 °C
Decomposition:
no
Remarks on result:
other: no pressure stated
Conclusions:
Potassium has a boling point of 765 °C.
Executive summary:

The boiling point of potassium is 765 °C as stated in an authoritative handbook.

Endpoint:
boiling 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
Boiling pt.:
754 °C
Decomposition:
no
Remarks on result:
other: no pressure stated
Conclusions:
Potassium has a boling point of 754 °C.
Executive summary:

The boiling point of potassium is 754 °C as stated in an authoritative scientifically textbook.

Description of key information

The boiling point of potassium was described in several handbooks/textbooks. The values differ slightly (e.g. 759 °C & 765 °C & 754 °C), but this difference can be ignored because of pressure uncertainties etc., so the boiling point of potassium is in the mean 759 °C.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
759 °C

Additional information