Sodium hydroselenide

Sodium hydroselenide
Names
	IUPAC name Sodium hydroselenide
	Other names Sodium biselenide
Identifiers
CAS Number	12195-50-5 ;
3D model ( JSmol )	Interactive image ;
ChemSpider	67024398 ;
PubChem CID	129628184 ;
	InChI InChI=1S/Na.H2Se/h;1H2/q+1;/p-1 Key: RBRLCUAPGJEAOP-UHFFFAOYSA-M ;
	SMILES [Na+].[SeH-] ;
Properties
Chemical formula	NaSeH
Molar mass	102.969 g·mol ?1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Sodium hydroselenide is an inorganic compound with the chemical formula Na Se H . It is a salt of hydrogen selenide . It consist of sodium cations Na ⁺ and hydroselenide anions ^?SeH . Each unit consists of one sodium, one selenium , and one hydrogen atom. Sodium hydroselenide is a selenium analog of sodium hydroxide NaOH.

Production [ edit ]

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

Se + Na[BH ₄] → NaSeH + BH ₃ (g)

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

CH ₃CH ₂O ^?Na ⁺ + H ₂Se → NaSeH + CH ₃CH ₂OH

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 ]

^ ^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 .

This inorganic compound ?related article is a stub . You can help Wikipedia by expanding it .

[rs-1] Młochowski, Jacek; Syper, Ludwik (2001). "Sodium Hydrogen Selenide". Encyclopedia of Reagents for Organic Synthesis . doi : 10.1002/047084289X.rs079 . ISBN 0471936235 .

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