Ammonium hexachloroplumbate

Ammonium hexachloroplumbate is an inorganic chemical compound with the chemical formula (NH4)2PbCl6.[1][2][3]

Ammonium hexachloroplumbate
Names
IUPAC name
Ammonium hexachloroplumbate(2–)
Other names
Ammonium hexachloroplumbate(IV)
Identifiers
3D model (JSmol)
  • InChI=1S/6ClH.2H3N.Pb/h6*1H;2*1H3;/q;;;;;;;;+4/p-4
    Key: WYELAMVRPGPECN-UHFFFAOYSA-J
  • [NH4+].[NH4+].Cl[Pb-2](Cl)(Cl)(Cl)(Cl)Cl
Properties
Cl6H8N2Pb
Molar mass 456.0 g·mol−1
Appearance yellow crystals
Density 2.925 g/cm3
Melting point 120
slightly soluble (cold); decomposes (hot)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Synthesis

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Adding ammonium chloride to a solution of lead(IV) tetraacetate in concentrated hydrochloric acid.[4]

Physical properties

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Ammonium hexachloroplumbate forms yellow crystals of cubic system.[5][6]

The compound is slightly soluble in cold water and decomposes in hot water.

Chemical properties

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When added to cold concentrated sulphuric acid, the compound decomposes, yielding PbCl4:[6][7]

(NH4)2PbCl6 + H2SO4 → (NH4)2SO4 + PbCl4 + 2HCl

The compound chlorinates tetraorganolead and hexaorganodilead compounds.[8]

References

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  1. ^ "Ammonium hexachloroplumbate(IV) | Chemical Substance Information | J-GLOBAL". jglobal.jst.go.jp. Retrieved 1 October 2024.
  2. ^ Kume, Y.; Muraoka, H.; Yamamuro, O.; Matsuo, T. (8 March 1998). "Deuteration-induced phase transition in ammonium hexachloroplumbate". The Journal of Chemical Physics. 108 (10): 4090–4097. Bibcode:1998JChPh.108.4090K. doi:10.1063/1.475806. Retrieved 1 October 2024.
  3. ^ Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 3003. ISBN 978-0-412-30120-9. Retrieved 1 October 2024.
  4. ^ Nakamura, Daiyu (1 December 1963). "The Nature of the Metal-Ligand Bonds in Hexahalostannates(IV) and Ammonium Hexachloroplumbate(IV) Studied by the Pure Quadrupole Resonance of Halogens". Bulletin of the Chemical Society of Japan. 36 (12): 1662. doi:10.1246/bcsj.36.1662.
  5. ^ "amminium hexachloroplumbate - Optional[Raman] - Spectrum - SpectraBase". spectrabase.com. Retrieved 1 October 2024.
  6. ^ a b Wiberg, Egon; Wiberg, Nils (2001). Inorganic Chemistry. Academic Press. p. 919. ISBN 978-0-12-352651-9. Retrieved 1 October 2024.
  7. ^ Bassett, J. (22 October 2013). Inorganic Chemistry: A Concise Text. Elsevier. p. 250. ISBN 978-1-4831-5122-9. Retrieved 1 October 2024.
  8. ^ Abel, E. W.; Stone, F. G. A. (31 October 2007). Organometallic Chemistry: Volume 2. Royal Society of Chemistry. p. 157. ISBN 978-1-84755-392-8. Retrieved 1 October 2024.