Bismuth(III) sulfate is an inorganic chemical compound of bismuth with the formula Bi2(SO4)3. It is a hygroscopic white solid that decomposes at 465 °C to bismuth(III) oxysulfate and is isotypic to antimony(III) sulfate.[1]
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| Names | |
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| Systematic IUPAC name
Dibismuth trisulfate | |
Other names
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.029.208 |
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PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| Bi2(SO4)3 | |
| Molar mass | 706.15 g/mol |
| Appearance | White solid |
| Density | 5.31 g/cm3[1] |
| Melting point | 465 °C (869 °F; 738 K)[2] (decomposes) |
| Hydrolysis | |
| Structure[1] | |
| monoclinic | |
| P21/n | |
a = 13.08 Å, b = 4.73 Å, c = 14.52 Å α = 90°, β = 100.9°, γ = 90°
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Formula units (Z)
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4 |
| Hazards | |
| GHS labelling: | |
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| Warning | |
| H315, H319, H335 | |
| P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501 | |
| NFPA 704 (fire diamond) | |
| Related compounds | |
Other anions
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Bismuth(III) nitrate |
Other cations
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Antimony(III) sulfate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Production
editBismuth(III) sulfate is most commonly produced from the reaction of bismuth(III) nitrate and sulfuric acid:
- 2 Bi(NO3)3 + 3 H2SO4 → Bi2(SO4)3 + 6 HNO3
Another polymorph of bismuth(III) sulfate can be produced by the treatment of lithium bismuthate(III) with sulfuric acid.[3]
Properties
editBismuth(III) sulfate decomposes at 465 °C to Bi2O(SO4)2. If continually heated, it decomposes to various bismuth oxysulfates and at 950 °C it decomposes to bismuth(III) oxide. Bismuth(III) sulfate hydrolyzes in water.[1][2]
References
edit- ^ a b c d Matthias Hämmer; Jakoah Brgoch; Philip Netzsch; Henning A. Höppe (2022). "The Role of the Bi3+ Lone Pair Effect in Bi(H3O)(SO4)2, Bi(HSO4)3, and Bi2(SO4)3". Inorganic Chemistry. 61 (9): 4102–4113. doi:10.1021/acs.inorgchem.1c03893. PMID 35192329. S2CID 247057309.
- ^ a b Ryoko Matsuzaki; Atsuko Sofue; Hagio Masumizu; Yuzo Saeki (1974). "THERMAL DECOMPOSITION PROCESS OF Bi2(SO4)3". Chemistry Letters. 3 (7): 737–740. doi:10.1246/cl.1974.737.
- ^ Chinmayee V. Subban; Gwenaëlle Rousse; Matthieu Courty; Philippe Barboux; Jean-Marie Tarascon (2014). "Polymorphism in Bi2(SO4)3". Solid State Sciences. 38: 25–29. Bibcode:2014SSSci..38...25S. doi:10.1016/j.solidstatesciences.2014.09.008.