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  • Elements

    SODIUM
    11
    Na
    22.989770 (2)


    Compounds of sodium:

    sodium (I) sulphide

    • Formula as commonly written: Na2S
    • Hill system formula: Na2S1
    • CAS registry number: [1313-82-2]
    • Formula weight: 78.046
    • Class: sulphide

    Synonyms

    • sodium (I) sulphide
    • sodium sulphide
    • disodium sulphide

    Physical properties

    • Colour: pink or white
    • Appearance: crystalline solid
    • Melting point: 1180°C; 1172°C
    • Boiling point:
    • Density: 1856

    Element analysis and oxidation numbers

    For each compound, and where possible, a formal oxidation number for each element is given, but the usefulness of this number is limited, especially so for p-block elements in particular. Based upon that oxidation number, an electronic configuration is also given but note that for more exotic compounds you should view this as a guide only.
    Element%Formal oxidation stateFormal electronic configuration
    Na 58.911[Ne]
    S 41.09-2[Ne].3s2.3p6

    Synthesis

    Not available

    Solid state structure

    • Geometry of sodium:
    • Prototypical structure:

    Crystal structure of sodium (I) sulphide

    Isotope pattern

    What follows is the calculated isotope pattern for the Na2S unit with the most intense ion set to 100%.

    Formula: Na2S1

    mass %78 100.0 __________________________________________________
    79 0.8
    80 4.4 __
    81 0.0
    82 0.0

    Suppliers

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    References

    The data on these compounds pages are assembled and adapted from the primary literature and several other sources including the following.

    • R.T. Sanderson in Chemical Periodicity, Reinhold, New York, USA, 1960.
    • N.N. Greenwood and A. Earnshaw in Chemistry of the Elements, 2nd edition, Butterworth, UK, 1997.
    • F.A. Cotton, G. Wilkinson, C.A. Murillo, and M. Bochmann, in Advanced Inorganic Chemistry, John Wiley & Sons, 1999.
    • A.F. Trotman-Dickenson, (ed.) in Comprehensive Inorganic Chemistry, Pergamon, Oxford, UK, 1973.
    • R.W.G. Wyckoff, in Crystal Structures, volume 1, Interscience, John Wiley & Sons, 1963.
    • A.R.West in Basic solid state chemistry Chemistry, John Wiley & Sons, 1999.
    • A.F. Wells in Structural inorganic chemistry, 4th edition, Oxford, UK, 1975.
    • J.D.H. Donnay, (ed.) in Crystal data determinative tables, ACA monograph number 5, American Crystallographic Association, USA, 1963.
    • D.R. Lide, (ed.) in Chemical Rubber Company handbook of chemistry and physics, CRC Press, Boca Raton, Florida, USA, 77th edition, 1996.
    • J.W. Mellor in A comprehensive treatise on inorganic and theoretical chemistry, volumes 1-16, Longmans, London, UK, 1922-1937.
    • J.E. Macintyre (ed.) in Dictionary of inorganic compounds, volumes 1-3, Chapman & Hall, London, UK, 1992.
    Fluorides
  • NaF
  • Chlorides
  • NaCl
  • Bromides
  • NaBr
  • Iodides
  • NaI
  • Hydrides
  • NaH
  • Oxides
  • NaO2
  • Na2O
  • Na2O2
  • Sulfides
  • Na2S.5H2O
  • Na2S.9H2O
  • Na2S
  • Selenides
  • Na2Se
  • Tellurides
  • Na2Te
  • Nitrides
    none listed




    Our data and resources are taken from Web Elements