Ammonium selenide

Ammonium selenide^[1]
Names
	Other names Dimmonium selenide;
Identifiers
CAS Number	66455-76-3;
3D model (JSmol)	Interactive image;
PubChem CID	15528384;
CompTox Dashboard (EPA)	DTXSID701336768 ;
	InChI InChI=1S/2H3N.Se/h2*1H3;/q;;-2/p+2 Key: JISUIHCFTLLJLJ-UHFFFAOYSA-P;
	SMILES [NH4+].[NH4+].[Se-2];
Properties
Chemical formula	(NH4)2Se
Molar mass	115.05 g/mol
Appearance	White solid
Solubility in water	Reacts
Solubility	Soluble in sodium hydroxide
Structure
Crystal structure	Orthorhombic
Related compounds
Other anions	Ammonium sulfide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Ammonium selenide is a chemical compound with the symbol (NH₄)₂Se. It is claimed to be a white solid and there is little to no spectroscopic evidence on this compound.^[1]^[2]

Preparation

It was first claimed to be prepared in 1898 by reacting concentrated ammonia and hydrogen selenide gas.^[1] However, this has been disproved in 1926 as it was shown that ammonium selenide was unstable in water. Instead, ammonium selenide was produced by the reaction of anhydrous ammonia and hydrogen selenide gas (made from the reaction of iron(II) selenide and hydrochloric acid). However, there is no X-ray crystallography on this compound.^[2]

Reactions

Ammonium selenide reacts with water and various acids. For example, it reacts with nitric acid to form selenous acid.^[3] It also reacts with various metals, such as calcium, to produce their respective selenides.^[4]

References

^ ^a ^b ^c Victor Lenher; Edgar F. Smith (1898). "Ammonium Selenide". Journal of the American Chemical Society. 20 (4). ACS Publications: 277–278. doi:10.1021/ja02066a007. Retrieved 15 March 2021.
^ ^a ^b ^c Wendehorst, Erwin (1926). "Über das Ammoniumselenid". Zeitschrift für anorganische und allgemeine Chemie (in German). 153 (1): 263–268. doi:10.1002/zaac.19261530124.
^ Wendehorst 1926, p. 268: "Salz- und Schwefelsäure bewirken augenblicklichen Zerfall; Salpetersäure und andere Oxydationsmittel oxydieren weiter zu H₂SeO₃ bzw. H₂SeO₄." [Hydrochloric and sulfuric acids effect instantaneous decomposition; nitric acid and other oxidizers oxidize further to H₂SeO₃ or resp. H₂SeO₄.]
^ T. Petze; J. Kohle (1977). "Über die Darstellung von CaSe, SrSe, BaSe und EuSe durch Reaktion der Metalle mit Selenwasserstoff in flüssigem Ammoniak". Zeitschrift für anorganische und allgemeine Chemie (in German). 437 (1): 193–196. doi:10.1002/zaac.19774370127.

[ammoniumacs-1] Victor Lenher; Edgar F. Smith (1898). "Ammonium Selenide". Journal of the American Chemical Society. 20 (4). ACS Publications: 277–278. doi:10.1021/ja02066a007. Retrieved 15 March 2021.

[selenid-2] Wendehorst, Erwin (1926). "Über das Ammoniumselenid". Zeitschrift für anorganische und allgemeine Chemie (in German). 153 (1): 263–268. doi:10.1002/zaac.19261530124.

[3] Wendehorst 1926, p. 268: "Salz- und Schwefelsäure bewirken augenblicklichen Zerfall; Salpetersäure und andere Oxydationsmittel oxydieren weiter zu H₂SeO₃ bzw. H₂SeO₄." [Hydrochloric and sulfuric acids effect instantaneous decomposition; nitric acid and other oxidizers oxidize further to H₂SeO₃ or resp. H₂SeO₄.]

[4] T. Petze; J. Kohle (1977). "Über die Darstellung von CaSe, SrSe, BaSe und EuSe durch Reaktion der Metalle mit Selenwasserstoff in flüssigem Ammoniak". Zeitschrift für anorganische und allgemeine Chemie (in German). 437 (1): 193–196. doi:10.1002/zaac.19774370127.

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