Temperatures
Melting point: 370.87 [97.72 °C (207.9 °F)] K
Boiling point: 1156 [883 °C (1621 °F)] K
Liquid range: 785.13 K
Critical temperature: 2573 [2300 °C (4172 °F)] K
Superconduction temperature: (no data) K
Enthalpies
Enthalpy of fusion: 2.60 kJ mol-1
Enthalpy of vaporisation: 97.7 kJ mol-1
Enthalpy of atomisation: 107 kJ mol-1
Thermodynamic data
This table gives a fewthermodynamic data for sodium. Most values are those given in the NBS technical notes (reference 1) after conversion from the units used within those notes. Values labelled with an asterisk (*) are Committee on Data for Science and Technology (CODATA) agreed values for the thermodynamic properties of key chemical substances (reference 2). These values are published in a number of places including the WWW (reference 3).
| State | ΔfH° | ΔfG° | S° | CpH | H°298.15‑H°0 |
|---|---|---|---|---|---|
| Units | kJ mol‑1 | kJ mol‑1 | J K‑1 mol‑1 | J K‑1 mol‑1 | kJ mol‑1 |
| Solid | *0 | 0 | *51.30 ± 0.20 | 28.2 | *6.460 ± 0.020 |
| Gas | *107.5 ± 0.7 | 77.0 | *153.718 ± 0.003 | 20.8 | *6.197 ± 0.001 |
| Gas (Na2) | 142.1 | 103.9 | 230.2 | 37.6 |
Notes
This tables gives a fewthermodynamic data. Most values are those given in the NBS technical notes (reference 1) after conversion from the units used within those notes. Values labelled with an asterisk (*) are Committee on Data for Science and Technology (CODATA) agreed values for the thermodynamic properties of key chemical substances (reference 2). These values are published in a number of places including the WWW (reference 3).
References
- R.H. Schumm, D.D. Wagman, S. Bailey, W.H. Evans, and V.B. Parker in National Bureau of Standards (USA) Technical Notes 270-1 to 270-8, 1973.
- http://www.codata.info/resources/databases/key1.html
- J.D. Cox, DD., Wagman, and V.A. Medvedev,CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, USA, 1989.