Beryllium: enthalpies and thermodynamic properties

Enthalpies

Enthalpy of fusion: 7.95 kJ mol-1

Enthalpy of vaporisation: 297 kJ mol-1

Thermodynamic data

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 *9.50 ± 0.08 16.4 *1.950 ±

Gas *324 ± 5 287 *136.275 ± 0.003 20.79 *6.197 ± 0.001

Notes

This tables gives a few thermodynamic 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).

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.

J.D. Cox, DD., Wagman, and V.A. Medvedev, CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, USA, 1989.

NMR Properties of beryllium

Common reference compound: BeSO4/D2O, 0.43 mol kg-1.

Isotope 1 Isotope 2 Isotope 3
Isotope 9Be
Natural abundance /% 100