Potassium selenide
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| Names | |
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| IUPAC name
Potassium selenide
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| Other names
Dipotassium selenide
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| 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
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toxic |
| GHS labelling: | |
  
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| 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
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Potassium oxide Potassium sulfide Potassium telluride Potassium polonide |
Other cations
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Lithium selenide Sodium selenide Rubidium selenide Caesium selenide |
Related compounds
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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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Potassium selenide (K2Se) is an inorganic compound formed from selenium and potassium.
Production
[edit]It can be produced by the reaction of selenium and potassium. If the two are combined in liquid ammonia, the purity is higher.
Crystal structure
[edit]Potassium selenide has a cubic, antifluorite crystal structure.
References
[edit]- ^ 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).
- ^ "Potassium selenide" (2017) at ChemicalBook (database).
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