Bismuth chloride

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Bismuth chloride
Bismuth chloride Chlorid bismutity.PNG
Bismuth chloride
Bismuth-trichloride-xtal-1982-3D-balls.png
Names
IUPAC name
Bismuth chloride
Other names
Bismuth trichloride, Trichlorobismuth, Trichlorobismuthine, Bismuth(III) chloride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.029.203 OOjs UI icon edit-ltr-progressive.svg
PubChem CID
RTECS number
  • EB2690000
UNII
  • InChI=1S/Bi.3ClH/h;3*1H/q+3;;;/p-3 Yes check.svgY
    Key: JHXKRIRFYBPWGE-UHFFFAOYSA-K Yes check.svgY
  • InChI=1/Bi.3ClH/h;3*1H/q+3;;;/p-3
    Key: JHXKRIRFYBPWGE-DFZHHIFOAJ
  • Cl[Bi](Cl)Cl
Properties
BiCl3
Molar mass 315.34 g/mol
Appearance hygroscopic white to yellow crystals
Density 4.75 g/cm3
Melting point 227 °C (441 °F; 500 K)
Boiling point 447 °C (837 °F; 720 K)
Soluble,hydrolyses
Solubility soluble in methanol, diethyl ether, acetone
-26.5·10−6 cm3/mol
Structure
cubic
Thermochemistry
0.333 J/(g K)
Std molar
entropy (S⦵298)
82.9 J/(K mol)
-1.202 kJ/g
Hazards
NFPA 704 (fire diamond)
NFPA 704.svgHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 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
2
0
0
Lethal dose or concentration (LD, LC):
3324 mg/kg, oral (rat)
Safety data sheet (SDS) JT Baker
Related compounds
Other anions
bismuth fluoride, bismuth subsalicylate, bismuth trioxide
Other cations
iron(III) chloride, manganese(II) chloride, cobalt(II) chloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Bismuth chloride (or butter of bismuth) is an inorganic compound with the chemical formula BiCl3. It is a covalent compound and is the common source of the Bi3+ ion. In the gas phase and in the crystal, the species adopts a pyramidal structure, in accord with VSEPR theory.

Contents

Preparation

Bismuth chloride can be synthesized directly by passing chlorine over bismuth.

2 Bi + 3 Cl2 → 2 BiCl3

or by dissolving bismuth metal in aqua regia, evaporating the mixture to give BiCl3·2H2O, which can be distilled to form the anhydrous trichloride. [1]

Alternatively, it may be prepared by adding hydrochloric acid to bismuth oxide and evaporating the solution.

Bi2O3 + 6 HCl → 2 BiCl3 + 3 H2O

Also, the compound can be prepared by dissolving bismuth in concentrated nitric acid and then adding solid sodium chloride into this solution. [2]

Bi + 6 HNO3 → Bi(NO3)3 + 3 H2O + 3 NO2
Bi(NO3)3 + 3 NaCl → BiCl3 + 3 NaNO3

Structure

In the gas phase BiCl3 is pyramidal with a Cl–Bi–Cl angle of 97.5° and a bond length of 242 pm. [3] In the solid state, each Bi atom has three near neighbors at 250 pm, two at 324 pm and three at a mean of 336 pm, [4] the image above highlights the three closest neighbours. This structure is similar to that of AsCl3, AsBr3, SbCl3 and SbBr3.

Chemistry

Bismuth chloride is hydrolyzed readily to bismuth oxychloride, BiOCl: [5]

Bi3+
(aq) + Cl−
(aq) + H
2O(l) ⇌ BiOCl (s) + 2 H+
(aq)

This reaction can be reversed by adding an acid, such as hydrochloric acid. [6]

Reaction of solid BiCl3 with water vapour below 50 °C has been shown to produce the intermediate monohydrate, BiCl3·H2O. [7]

Bismuth chloride is an oxidizing agent, being readily reduced to metallic bismuth by reducing agents.

Chloro complexes

In contrast to the usual expectation by consistency with periodic trends, BiCl3 is a Lewis acid, forming a variety of chloro complexes such as [BiCl6]3− that strongly violates the octet rule. Furthermore, the octahedral structure of this coordination complex does not follow the predictions of VSEPR theory, since the lone pair on bismuth is unexpectedly stereochemically inactive. The dianionic complex [BiCl5]2− does however adopt the expected square pyramidal structure. [8]

Tricaesium-hexachlorobismuthate-xtal-1986-3D-balls.png Tricaesium-hexachlorobismuthate-xtal-1986-3D-SF.png Hexachlorobismuthate-from-tricaesium-xtal-1986-3D-balls.png
Cs3[BiCl6]Cs3[BiCl6][BiCl6]3−

Organic catalysis

Bismuth chloride is used as a catalyst in organic synthesis. In particular, it catalyzes the Michael reaction and the Mukaiyama aldol reaction. The addition of other metal iodides increases its catalytic activity. [9]

Related Research Articles

<span class="mw-page-title-main">Lead(II) chloride</span> Chemical compound

Lead(II) chloride (PbCl2) is an inorganic compound which is a white solid under ambient conditions. It is poorly soluble in water. Lead(II) chloride is one of the most important lead-based reagents. It also occurs naturally in the form of the mineral cotunnite.

Neodymium(III) chloride or neodymium trichloride is a chemical compound of neodymium and chlorine with the formula NdCl3. This anhydrous compound is a mauve-colored solid that rapidly absorbs water on exposure to air to form a purple-colored hexahydrate, NdCl3·6H2O. Neodymium(III) chloride is produced from minerals monazite and bastnäsite using a complex multistage extraction process. The chloride has several important applications as an intermediate chemical for production of neodymium metal and neodymium-based lasers and optical fibers. Other applications include a catalyst in organic synthesis and in decomposition of waste water contamination, corrosion protection of aluminium and its alloys, and fluorescent labeling of organic molecules (DNA).

<span class="mw-page-title-main">Aluminium chloride</span> Chemical compound

Aluminium chloride, also known as aluminium trichloride, is an inorganic compound with the formula AlCl3. It forms a hexahydrate with the formula [Al(H2O)6]Cl3, containing six water molecules of hydration. Both the anhydrous form and the hexahydrate are colourless crystals, but samples are often contaminated with iron(III) chloride, giving them a yellow colour.

<span class="mw-page-title-main">Dysprosium(III) chloride</span> Chemical compound

Dysprosium(III) chloride (DyCl3), also known as dysprosium trichloride, is a compound of dysprosium and chlorine. It is a white to yellow solid which rapidly absorbs water on exposure to moist air to form a hexahydrate, DyCl3·6H2O. Simple rapid heating of the hydrate causes partial hydrolysis to an oxychloride, DyOCl.

<span class="mw-page-title-main">Arsenic trichloride</span> Chemical compound

Arsenic trichloride is an inorganic compound with the formula AsCl3, also known as arsenous chloride or butter of arsenic. This poisonous oil is colourless, although impure samples may appear yellow. It is an intermediate in the manufacture of organoarsenic compounds.

<span class="mw-page-title-main">Antimony trichloride</span> Chemical compound

Antimony trichloride is the chemical compound with the formula SbCl3. It is a soft colorless solid with a pungent odor and was known to alchemists as butter of antimony.

<span class="mw-page-title-main">Gallium(III) chloride</span> Chemical compound

Gallium(III) chloride is an inorganic chemical compound with the formula GaCl3 which forms a monohydrate, GaCl3·H2O. Solid gallium(III) chloride is a deliquescent white solid and exists as a dimer with the formula Ga2Cl6. It is colourless and soluble in virtually all solvents, even alkanes, which is truly unusual for a metal halide. It is the main precursor to most derivatives of gallium and a reagent in organic synthesis.

<span class="mw-page-title-main">Thulium(III) chloride</span> Chemical compound

Thulium(III) chloride or thulium trichloride is as an inorganic salt composed of thulium and chlorine with the formula TmCl3. It forms yellow crystals. Thulium(III) chloride has the YCl3 (AlCl3) layer structure with octahedral thulium ions. It has been used as a starting material for some exotic nanostructures prepared for NIR photocatalysis.

<span class="mw-page-title-main">Selenium tetrachloride</span> Chemical compound

Selenium tetrachloride is the inorganic compound composed with the formula SeCl4. This compound exists as yellow to white volatile solid. It is one of two commonly available selenium chlorides, the other example being selenium monochloride, Se2Cl2. SeCl4 is used in the synthesis of other selenium compounds.

<span class="mw-page-title-main">Bismuth oxychloride</span> Chemical compound

Bismuth oxychloride is an inorganic compound of bismuth with the formula BiOCl. It is a lustrous white solid used since antiquity, notably in ancient Egypt. Light wave interference from its plate-like structure gives a pearly iridescent light reflectivity similar to nacre. Previously, until the last decade of the twentieth century, bismuth oxochloride was known as bismuthyl chloride. It is also known as pigment pearl white.

<span class="mw-page-title-main">Bismuth tribromide</span> Chemical compound

Bismuth tribromide is an inorganic compound of bismuth and bromine with the chemical formula BiBr3.

<span class="mw-page-title-main">Berkelium compounds</span> Chemical compounds

Berkelium forms a number of chemical compounds, where it normally exists in an oxidation state of +3 or +4, and behaves similarly to its lanthanide analogue, terbium. Like all actinides, berkelium easily dissolves in various aqueous inorganic acids, liberating gaseous hydrogen and converting into the trivalent oxidation state. This trivalent state is the most stable, especially in aqueous solutions, but tetravalent berkelium compounds are also known. The existence of divalent berkelium salts is uncertain and has only been reported in mixed lanthanum chloride-strontium chloride melts. Aqueous solutions of Bk3+ ions are green in most acids. The color of the Bk4+ ions is yellow in hydrochloric acid and orange-yellow in sulfuric acid. Berkelium does not react rapidly with oxygen at room temperature, possibly due to the formation of a protective oxide surface layer; however, it reacts with molten metals, hydrogen, halogens, chalcogens and pnictogens to form various binary compounds. Berkelium can also form several organometallic compounds.

In chemistry, molecular oxohalides (oxyhalides) are a group of chemical compounds in which both oxygen and halogen atoms are attached to another chemical element A in a single molecule. They have the general formula AOmXn, where X is a halogen. Known oxohalides have fluorine (F), chlorine (Cl), bromine (Br), and/or iodine (I) in their molecules. The element A may be a main group element, a transition element, a rare earth element or an actinide. The term oxohalide, or oxyhalide, may also refer to minerals and other crystalline substances with the same overall chemical formula, but having an ionic structure.

<span class="mw-page-title-main">Bismuth oxynitrate</span> Chemical compound

Bismuth oxynitrate is the name applied to a number of compounds that contain Bi3+, nitrate ions and oxide ions and which can be considered as compounds formed from Bi2O3, N2O5 and H2O. Other names for bismuth oxynitrate include bismuth subnitrate and bismuthyl nitrate. In older texts bismuth oxynitrate is often simply described as BiONO3 or basic bismuth nitrate. Bismuth oxynitrate was once called magisterium bismuti or bismutum subnitricum, and was used as a white pigment, in beauty care, and as a gentle disinfectant for internal and external use. It is also used to form Dragendorff's reagent, which is used as a TLC stain.

Lanthanide trichlorides are a family of inorganic compound with the formula LnCl3, where Ln stands for a lanthanide metal. The trichlorides are standard reagents in applied and academic chemistry of the lanthanides. They exist as anhydrous solids and as hydrates.

<span class="mw-page-title-main">Berkelium(III) chloride</span> Chemical compound

Berkelium(III) chloride also known as berkelium trichloride, is a chemical compound with the formula BkCl3. It is a water-soluble green salt with a melting point of 603 °C. This compound forms the hexahydrate, BkCl3·6H2O.

Manganese(III) chloride is the hypothetical inorganic compound with the formula MnCl3.

Americium compounds are compounds containing the element americium (Am). These compounds can form in the +2, +3, and +4, although the +3 oxidation state is the most common. The +5, +6 and +7 oxidation states have also been reported.

<span class="mw-page-title-main">Bismuthyl (ion)</span> Chemical compound

Bismuthyl is an inorganic oxygen-containing singly charged ion with the chemical formula BiO+, and is an oxycation of bismuth in the +3 oxidation state. Most often it is formed during the hydrolysis of trivalent bismuth salts, primarily nitrate, chloride and other halides. In chemical compounds, bismuthyl plays the role of a monovalent cation.

References

  1. ↑ Godfrey, S. M.; McAuliffe, C. A.; Mackie, A. G.; Pritchard, R. G. (1998). Nicholas C. Norman (ed.). Chemistry of arsenic, antimony, and bismuth. Springer. p. 90. ISBN   0-7514-0389-X.
  2. ↑ Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, ISBN   0-07-049439-8
  3. ↑ Töke, Orsolya, and Magdolna Hargittai. "Molecular structure of bismuth trichloride from combined electron diffraction and vibrational spectroscopic study." Structural Chemistry 6.2 (1995): 127–130.
  4. ↑ Wells A.F. (1984) Structural Inorganic Chemistry 5th edition, pp. 879–884, Oxford Science Publications, ISBN   0-19-855370-6
  5. ↑ Joel Henry Hildebrand (2008). Principles of Chemistry. BiblioBazaar, LLC. p. 191. ISBN   978-0-559-31877-1.
  6. ↑ Frank Welcher (2008). Chemical Solutions. READ BOOKS. p. 48. ISBN   978-1-4437-2907-9.
  7. ↑ Wosylus, Aron; Hoffmann, Stefan; Schmidt, Marcus; Ruck, Michael (2010). "In-situ Study of the Solid-Gas Reaction of BiCl3 to BiOCl via the Intermediate Hydrate BiCl3·H2O". European Journal of Inorganic Chemistry. 2010 (10): 1469–1471. doi:10.1002/ejic.201000032. ISSN   1434-1948.
  8. ↑ Holleman, A. F.; Wiberg, E. "Inorganic Chemistry" Academic Press: San Diego, 2001. ISBN   0-12-352651-5.
  9. ↑ Hitomi Suzuki; Yoshihiro Matano (2001). Organobismuth chemistry . Elsevier. pp.  403–404. ISBN   0-444-20528-4.
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