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Disodium hydrogen phosphite

From Wikipedia, the free encyclopedia

Disodium hydrogen phosphite
Skeletal formula of disodium hydrogen phosphite
Names
IUPAC name
sodium phosphonate pentahydrate
Other names
Sodium phosphate dibasic pentahydrate,
sodium phosphite
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.033.848 Edit this at Wikidata
UNII
  • InChI=1S/2Na.O3P/c;;1-4(2)3/q2*+1;-3/p+1 checkY
    Key: XWGAABYWOLJBFF-UHFFFAOYSA-O checkY
  • InChI=1/2Na.O3P/c;;1-4(2)3/q2*+1;-3/p+1
    Key: XWGAABYWOLJBFF-IKLDFBCSAK
  • O=P([O-])([O-])[H].[Na+].[Na+]
  • anhydrous: [H+].[Na+].[Na+].[O-]P([O-])[O-]
Properties
HNa2O3P
Molar mass 125.958 g·mol−1
Appearance white solid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Disodium hydrogen phosphite is the name for inorganic compounds with the formula Na2HPO3•(H2O)x. The commonly encountered salt is the pentahydrate.[1] A derivative of phosphorous acid (HP(O)(OH)2), it contains the anion HPO32−. Its common name suggests that it contains an acidic hydrogen atom, as in sodium hydrogen carbonate. However, this name is misleading as the hydrogen atom is not acidic, being bonded to phosphorus rather than oxygen. The salt has reducing properties. It is white or colorless solid, and is little studied.

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Transcription

References

  1. ^ Brodalla, Dieter; Goeters, Christiane; Kniép, Ruediger; Mootz, Dietrich; Wunderlich, Hartmut (1978). "Zur Kenntnis der Hydrate des Na2PHO3, Phasenbeziehungen und kristallographische Untersuchungen (Hydrates of sodium phosphite, phase relations and crystallographic studies)". Zeitschrift für Anorganische und Allgemeine Chemie. 439: 265–74. doi:10.1002/zaac.19784390132.


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This page was last edited on 31 May 2023, at 09:02
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