Misplaced Pages

Arsonic acid

Article snapshot taken from[REDACTED] with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
Arsonic acid
Names
Preferred IUPAC name Arsonic acid
Identifiers
CAS Number
3D model (JSmol)
ChEBI
ChemSpider
PubChem CID
UNII
CompTox Dashboard (EPA)
InChI
  • InChI=1S/AsH2O3/c2-1(3)4/h(H2,2,3,4)Key: MJJNNUVOCYXPBG-UHFFFAOYSA-N
SMILES
  • O(=O)O
Properties
Chemical formula AsH3O3
Molar mass 125.943 g·mol
Conjugate base Hydrogen arsonate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references
Chemical compound For the functional group, see Arsonic acid (functional group).
Arsenous acid (As(OH)3) is the stable tautomer of H3AsO3.
Phosphorous acid (also called phosphonic acid) exists as the pentavalent tautomer, in contrast to H3AsO3.

Arsonic acid is the simplest of the arsonic acids. It is a hypothetical compound, although the tautomeric arsenious acid (As(OH)3) is well established. In contrast to the instability of HAsO(OH)2, the phosphorus compound with analogous stoichiometry exists as the tetrahedral tautomer. Similarly, organic derivatives such as phenylarsonic acid are tetrahedral with pentavalent central atom.

There are similar acids that are the same except for having different pnictogens. The phosphorus equivalent is phosphonic acid.

References

  1. Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 916. doi:10.1039/9781849733069-00648. ISBN 978-0-85404-182-4.
  2. Munoz-Hernandez, M.-A. (1994). "Arsenic: Inorganic Chemistry". In King, R. B. (ed.). Encyclopedia of Inorganic Chemistry. Chichester: John Wiley & Sons.
  3. Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.


Stub icon

This article about theoretical chemistry is a stub. You can help Misplaced Pages by expanding it.

Stub icon

This article about an acid is a stub. You can help Misplaced Pages by expanding it.

Categories:
Arsonic acid Add topic