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background
  • Key data; description
  • History
  • hydrogen around us
  • Uses
  • Geology
  • Biology
  • hydrogen compounds
  • Reactions of hydrogen
  • Compounds
  • Bond enthalpies
  • Radii in compounds
  • Lattice energies
  • Reduction potentials
  • nuclear properties
  • NMR
  • Naturally occurring isotopes
  • Radioisotopes
  • electronic properties
  • Electronic configuration
  • Ionization energies
  • Electron affinities
  • Electronegativities
  • Effective nuclear charges
  • Electron binding energies
  • Atom radii
  • Valence shell radii
  • physical properties
  • Bulk properties (density, resistivity, etc.)
  • Thermal properties (melting point, etc.)
  • Thermodynamic properties
  • crystallography
  • Crystal structure
  • Elements

    BORON
    5
    B
    10.811 (7)


    Thermodynamic properties
    StateΔf
    /kJ mol-1
    Δf
    /kJ mol-1

    /J K-1 mol-1
    CpH
    /J K-1 mol-1
    298.15-H°0
    /kJ mol-1
    Solid (rhombic)*00*5.90 ± 0.0811.1*1.222 ± 0.008
    Gas*565 ± 5519*153.436 ± 0.01520.80*6.316 ± 0.002
    Bas (B2)831774201.830.58.76

    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).

    References

    1. 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.
    2. J.D. Cox, DD., Wagman, and V.A. Medvedev, CODATA Key Valuesfor Thermodynamics, Hemisphere Publishing Corp., New York, USA, 1989.
    3. http://www.codata.org/codata/databases/key1.html
    Fluorides
  • BF3
  • B2F4
  • Chlorides
  • BCl3
  • B2Cl4
  • Bromides
  • BBr3
  • Iodides
  • BI3
  • Hydrides
  • B2H6
  • B4H10
  • B5H9
  • B5H11
  • B6H10
  • B10H14
  • Oxides
  • B2O3
  • Sulfides
  • B2S3
  • Selenides
    none listed
    Tellurides
    none listed
    Nitrides
  • BN






  • Our data and resources are taken from Web Elements