Rubidium sulfide
Rubidium sulfide is an inorganic compound and a salt with the chemical formula Rb2S. It is a white solid with similar properties to other alkali metal sulfides.
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Names | |
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IUPAC name
Rubidium sulfide | |
Identifiers | |
3D model (JSmol) |
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PubChem CID |
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Properties | |
Rb2S | |
Molar mass | 203.00 |
Appearance | white crystal |
Density | 2.912 g/cm3[1] |
Melting point | 530 °C[2] |
hydrolyses to rubidium bisulfide[1] | |
Solubility in ethanol and glycerol | soluble |
Structure | |
cubic:anti-fluorite | |
Hazards | |
Main hazards | toxic |
GHS pictograms | ![]() ![]() |
GHS Signal word | Danger |
H314, H400 | |
P260, P264, P273, P280, P301+330+331, P303+361+353, P304+340, P305+351+338, P310, P321, P363, P391, P405, P501 | |
Related compounds | |
Other anions |
rubidium oxide rubidium selenide rubidium telluride rubidium polonide |
Other cations |
lithium sulfide, sodium sulfide, potassium sulfide, caesium sulfide, francium sulfide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Infobox references | |
Production
By dissolving hydrogen sulfide into rubidium hydroxide solution, it will produce rubidium bisulfide, followed by rubidium sulfide.[3][4]
Properties
Physical properties
Rubidium sulfide has a cubic crystal similar to lithium sulfide, sodium sulfide and potassium sulfide, known as the anti-fluorite structure. Their space groups are . Rubidium sulfide has a crystal lattice unit cell dimension of a = 765.0 pm.[1]
Chemical properties
Rubidium sulfide reacts with sulfur in hydrogen gas to form rubidium pentasulfide, Rb2S5.[4][5]
References
- 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 (, 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 (, p. 336, at Google Books).
- Wilhelm Blitz, Ernst Wilke-Dörfurt: "Über Sulfide des Rubidiums und Cäsiums" in Zeitschr. f. anorg. Chem. 1906. 48, S. 297–317. Volltext
- R. Abegg, F. Auerbach: 'Handbuch der anorganischen Chemie'. Verlag S. Hirzel, Bd. 2, 1908. S. 430.Volltext
- Wilhelm Blitz, Ernst Wilke-Dörfurt: Ueber die Pentasulfide des Rubidiums und Cäsiums. In Ber. d. dt. chem. Ges. 1905, 38, 1, S. 123–130, doi:10.1002/cber.19050380114.
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