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Arsonium

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Ion
Arsonium
Ball-and-stick model version of the arsonium ion
Names
Systematic IUPAC name Arsonium
Identifiers
CAS Number
3D model (JSmol)
ChEBI
ChemSpider
Gmelin Reference 322800
PubChem CID
CompTox Dashboard (EPA)
InChI
  • InChI=1S/AsH4/h1H4/q+1Key: VUEDNLCYHKSELL-UHFFFAOYSA-N
SMILES
Properties
Chemical formula AsH
4
Molar mass 78.954 g·mol
Conjugate base Arsine
Structure
Molecular shape Tetrahedral
Related compounds
Related compounds ammonium
phosphonium
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references
Chemical compound
Structure of quaternary arsonium compound arsenobetaine.

The arsonium cation is a positively charged polyatomic ion with the chemical formula AsH
4. An arsonium salt is a salt containing either the arsonium (AsH
4) cation, such as arsonium bromide (AsH
4Br
) and arsonium iodide (AsH
4I
), which can be synthesized by reacting arsine with hydrogen bromide or hydrogen iodide. Or more commonly, as organic derivative such as the quaternary arsonium salts Ph
4As
Cl
(CAS: 123334-18-9 , hydrate form) and the zwitterionic compound arsenobetaine.

References

  1. Muñoz-Hernández, M. Á. (2006). Arsenic: Inorganic Chemistry. Encyclopedia of Inorganic Chemistry. pp 4. DOI: 10.1002/0470862106.ia013


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