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PUBLICATIONS

Melting Points and Boiling Points for the Alkali Metals

Published

Author(s)

Nikhila Narayana, Donald R. Burgess Jr.

Abstract

In this work, we compiled, evaluated, and select recommended values for use for the melting points and boiling points of the alkali metals: lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). Here we provide all of the measurements in the literature for melting points and boiling points of these elements along with selection of recommended values. We also compiled and evaluated vapor pressures for (just) lithium from and fitted these set of data from which the boiling point can be accurately determined and computed an enthalpy of vaporization. For values reported prior to 1990, we corrected the values to the International Temperature Scale of 1990 (ITS-90).
Citation
Technical Note (NIST TN) - 2273
Report Number
2273
NIST Pub Series
Technical Note (NIST TN)
Pub Type
NIST Pubs

Download Paper

https://doi.org/10.6028/NIST.TN.2273
Local Download

Keywords

alkali metals, melting points, boiling points, vapor pressure, critically evaluated data
Reference data and Chemical thermodynamics and chemical properties

Citation

Narayana, N. and Burgess Jr., D. (2024), Melting Points and Boiling Points for the Alkali Metals, Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.TN.2273, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=956838 (Accessed October 6, 2025)

Issues

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Created February 29, 2024
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