Sodium hydroselenide

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Sodium hydroselenide
NaSeH.png
Names
Other names
sodium biselenide
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/Na.H2Se/h;1H2/q+1;/p-1
    Key: RBRLCUAPGJEAOP-UHFFFAOYSA-M
  • [Na+].[SeH-]
Properties
NaSeH
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Sodium hydroselenide is a chemical compound, an inorganic salt; each unit consists of one sodium, one selenium, and one hydrogen atom.

Production[edit]

Sodium hydroselenide can be made by reducing selenium with sodium borohydride:

Se + NaBH4 → NaSeH + BH3(g)

Alternatively it can be made from sodium ethoxide exposed to hydrogen selenide:[1]

NaOEt + H2Se → NaSeH + HOEt

Sodium hydroselenide is not made for storage, instead it is used immediately after production in a fume hood thanks to the appalling odour of hydrogen selenide.

Properties[edit]

Sodium hydroselenide dissolves in water or ethanol. In humid air sodium hydroselenide is changed to sodium polyselenide and elemental selenium.[1]

Sodium hydroselenide is slightly reducing.[1]

Use[edit]

In organic synthesis, hydrogen sodium hydroselenide is a nucleophillic agent for insertion of selenium.[1]

References[edit]

  1. ^ a b c d Młochowski, Jacek; Syper, Ludwik (2001). "Sodium Hydrogen Selenide". Encyclopedia of Reagents for Organic Synthesis. doi:10.1002/047084289X.rs079. ISBN 0471936235.