Wikipedia

Bismuth(III) sulfate

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]

Bismuth(III) sulfate
Names
Systematic IUPAC name
Dibismuth trisulfate
Other names
  • Bismuth trisulfate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.029.208 Edit this at Wikidata
EC Number
  • 232-129-5
UNII
  • InChI=1S/2Bi.3H2O4S/c;;3*1-5(2,3)4/h;;3*(H2,1,2,3,4)/q2*+3;;;/p-6
    Key: BEQZMQXCOWIHRY-UHFFFAOYSA-H
  • [O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Bi+3].[Bi+3]
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°
4
Hazards
GHS labelling:
GHS07: Exclamation mark
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)
NFPA 704 four-colored diamondHealth 0: Exposure under fire conditions would offer no hazard beyond that of ordinary combustible material. E.g. sodium chlorideFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
0
0
0
Related compounds
Other anions
 Bismuth(III) nitrate
Other cations
 Antimony(III) sulfate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Production

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Bismuth(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

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Bismuth(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

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  1. ^ 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.
  2. ^ 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.
  3. ^ 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.
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