Names | |
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IUPAC name
Rubidium sulfide
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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 | |
Occupational safety and health (OHS/OSH): | |
Main hazards
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toxic |
GHS labelling: | |
Danger | |
H314, H400 | |
P260, P264, P273, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P391, P405, P501 | |
Related compounds | |
Other
anions
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Rubidium oxide Rubidium selenide Rubidium telluride Rubidium polonide |
Other
cations
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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).
|
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.
By dissolving hydrogen sulfide into rubidium hydroxide solution, it will produce rubidium bisulfide, followed by rubidium sulfide. [3] [4]
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 = 765.0 pm. [1]
Rubidium sulfide reacts with sulfur in hydrogen gas to form rubidium pentasulfide, Rb2S5. [4] [5]