Gold(III) chloride
Ball-and-stick model of AuCl3
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Crystal structure of AuCl3
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| Names | |
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| IUPAC name
Gold(III) trichloride
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| Other names
Auric chloride
Gold trichloride | |
| Identifiers | |
3D model (JSmol)
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| ChEBI | |
| ChemSpider | |
| ECHA InfoCard | 100.033.280 |
PubChem CID
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| RTECS number |
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| UNII | |
CompTox Dashboard (EPA)
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SMILES
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| Properties | |
| AuCl3 (exists as Au2Cl6) | |
| Molar mass | 606.6511 g/mol |
| Appearance | Red crystals (anhydrous); golden, yellow crystals (monohydrate)[1] |
| Density | 4.7 g/cm3 |
| Melting point | 160 °C (320 °F; 433 K) (decomposes) |
| 68 g/100 ml (20 °C) | |
| Solubility | soluble in ether and ethanol, slightly soluble in liquid ammonia, insoluble in benzene |
Magnetic susceptibility (χ)
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−112·10−6 cm3/mol |
| Structure | |
| monoclinic | |
| P21/C | |
Lattice constant
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a = 6.57 Å, b = 11.04 Å, c = 6.44 Å α = 90°, β = 113.3°, γ = 90°[2]
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Coordination geometry
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Square planar |
| Thermochemistry | |
Std enthalpy of
formation (ΔfH⦵298) |
−117.6 kJ/mol[3] |
| Hazards[4] | |
| Occupational safety and health (OHS/OSH): | |
Main hazards
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Irritant |
| GHS labelling: | |
Pictograms
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| Warning | |
Hazard statements
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H315, H319, H335 |
Precautionary statements
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P261, P264, P271, P280, P302+P352, P305+P351+P338 |
| Related compounds | |
Other anions
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Gold(III) fluoride Gold(III) bromide |
Other cations
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Gold(I) chloride Silver(I) chloride Platinum(II) chloride Mercury(II) chloride |
| Supplementary data page | |
| Gold(III) chloride (data page) | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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Gold(III) chloride, traditionally called auric chloride, is an inorganic compound of gold and chlorine with the molecular formula Au2Cl6. The "III" in the name indicates that the gold has an oxidation state of +3, typical for many gold compounds. It has two forms, the monohydrate (AuCl3·H2O) and the anhydrous form, which are both hygroscopic and light-sensitive solids. This compound is a dimer of AuCl3. This compound has a few uses, such as an oxidizing agent and for catalyzing various organic reactions.
- ^ Cite error: The named reference
wiberg_hollemanwas invoked but never defined (see the help page). - ^ Cite error: The named reference
cryswas invoked but never defined (see the help page). - ^ Haynes, William M.; Lide, David R.; Bruno, Thomas J., eds. (2016). CRC Handbook of Chemistry and Physics: A Ready-reference Book of Chemical and Physical Data (95th ed.). Boca Raton, Florida. p. 5-5. ISBN 978-1-4987-5428-6. OCLC 930681942.
{{cite book}}: CS1 maint: location missing publisher (link) - ^ "Gold Chloride". American Elements. Retrieved July 22, 2019.