Potassium selenide

Potassium selenide
Names
	IUPAC name Potassium selenide
	Other names Dipotassium selenide
Identifiers
CAS Number	1312-74-9 ;
3D model (JSmol)	Interactive image;
ChemSpider	66596;
ECHA InfoCard	100.013.817
EC Number	215-198-6;
PubChem CID	73968;
UNII	5B5516VCNR;
CompTox Dashboard (EPA)	DTXSID6061658 ;
	InChI InChI=1S/2K.Se/q2*+1;-2 Key: VZZSRKCQPCSMRS-UHFFFAOYSA-N;
	SMILES [K+].[K+].[Se-2];
Properties
Chemical formula	K2Se
Molar mass	157.16
Appearance	clearish wet crystal
Density	2.29 g/cm3
Solubility in water	reacts
Structure
Crystal structure	cubic: antifluorite
Hazards
Main hazards	toxic
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H331, H373, H410
Precautionary statements	P260, P262, P264, P270, P271, P273, P280, P284, P301+P310, P304+P340, P310, P314, P320, P321, P330, P361, P363, P391, P403+P233, P405, P501
Related compounds
Other anions	Potassium oxide; Potassium sulfide; Potassium telluride; Potassium polonide
Other cations	Lithium selenide; Sodium selenide; ;
Related compounds	Potassium selenate
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Potassium selenide (K₂Se) is an inorganic compound formed from selenium and potassium.

Production[]

It can be produced by the reaction of selenium and potassium. If the two are combined in liquid ammonia, the purity is higher.

Potassium selenide has a cubic, antifluorite crystal structure.

^ Jean D'Ans, Ellen Lax: Taschenbuch für Chemiker und Physiker. 3. Elemente, anorganische Verbindungen und Materialien, Minerale, Band 3. 4. Auflage, Springer, 1997, ISBN 978-3-5406-0035-0, S. 692 ([1], p. 692, at Google Books).
^ Dale L. Perry, Sidney L. Phillips: Handbook of inorganic compounds. CRC Press, 1995, ISBN 978-0-8493-8671-8, S. 336 ([2], p. 336, at Google Books).

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