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Inorganic compound From Wikipedia, the free encyclopedia
Potassium selenide (K2Se) is an inorganic compound formed from selenium and potassium.
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Names | |
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IUPAC name
Potassium selenide | |
Other names
Dipotassium selenide | |
Identifiers | |
3D model (JSmol) |
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ChemSpider | |
ECHA InfoCard | 100.013.817 |
EC Number |
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PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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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 | |
Other anions |
Potassium oxide Potassium sulfide Potassium telluride Potassium polonide |
Other cations |
Lithium selenide Sodium selenide Rubidium selenide Caesium 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).
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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.
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