 | This articleneeds additional citations forverification. Please helpimprove this article byadding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Potassium selenide" – news ·newspapers ·books ·scholar ·JSTOR(March 2020) (Learn how and when to remove this message) |
 | |
| Names | |
|---|---|
| IUPAC name Potassium selenide | |
| Other names Dipotassium selenide | |
| Identifiers | |
3D model (JSmol) | |
| ChemSpider | |
| ECHA InfoCard | 100.013.817 |
| EC Number |
|
| UNII | |
| |
| |
| Properties | |
| K2Se | |
| Molar mass | 157.16 |
| Appearance | clearish wet crystal[1] |
| Density | 2.29 g/cm3[2] |
| Melting point | 800 °C (1,470 °F; 1,070 K)[3] |
| reacts | |
| Structure | |
| cubic:antifluorite | |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards | toxic |
| GHS labelling: | |
   | |
| Danger | |
| H301,H331,H373,H410 | |
| 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 | |
Otheranions | Potassium oxide Potassium sulfide Potassium telluride Potassium polonide |
Othercations | Lithium selenide Sodium selenide Rubidium selenide Caesium selenide |
Related compounds | Potassium selenate |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Potassium selenide (K2Se) is an inorganic compound formed fromselenium andpotassium.
It can be produced by the reaction ofselenium andpotassium. If the two are combined inliquid ammonia, the purity is higher.
Potassium selenide has a cubic,antifluorite crystal structure.
