| Revision as of 16:15, 9 January 2012 editBeetstra (talk | contribs)Edit filter managers, Administrators172,031 edits Saving copy of the {{chembox}} taken from revid 469299064 of page Gold(I)_chloride for the Chem/Drugbox validation project (updated: 'CASNo'). |
Latest revision as of 05:31, 28 June 2023 edit Whyiseverythingalreadyused (talk | contribs)212 editsm Fixed spellingTag: Visual edit |
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{{ambox | text = This page contains a copy of the infobox ({{tl|chembox}}) taken from revid of page ] with values updated to verified values.}} |
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{{chembox |
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{{chembox |
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| verifiedrevid = 443849447 |
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| Watchedfields = changed |
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| OtherNames =Gold(I) chloride |
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| verifiedrevid = 470455334 |
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| ImageFile=Crystal AuCl.jpg |
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| IUPACName = Gold(I) chloride |
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| Section1 = {{Chembox Identifiers |
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| OtherNames =Aurous chloride |
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| ImageFile =Gold(I)-chlorid.png |
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| ImageSize = 250px |
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|Section1={{Chembox Identifiers |
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| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
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| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
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| ChemSpiderID = 25464 |
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| ChemSpiderID = 25464 |
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| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} |
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| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} |
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| StdInChIKey = FDWREHZXQUYJFJ-UHFFFAOYSA-M |
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| StdInChIKey = FDWREHZXQUYJFJ-UHFFFAOYSA-M |
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| CASNo_Ref = {{cascite|correct|??}} |
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| CASNo_Ref = {{cascite|changed|??}} |
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| CASNo = <!-- blanked - oldvalue: 10294-29-8 --> |
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| CASNo = 10294-29-8 |
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}} |
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| UNII_Ref = {{fdacite|changed|FDA}} |
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| Section2 = {{Chembox Properties |
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| UNII = JD7Y972WU9 |
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| PubChem = 27366 |
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}} |
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|Section2={{Chembox Properties |
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| Formula = AuCl |
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| Formula = AuCl |
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| MolarMass = 232.423 g/mol |
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| MolarMass = 232.423 g/mol |
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| Appearance = yellow solid |
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| Appearance = yellow solid |
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| Density = 7.6 g/cm<sup>3</sup> <ref>Pradyot Patnaik. ''Handbook of Inorganic Chemicals''. McGraw-Hill, 2002, ISBN 0070494398</ref> |
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| Density = 7.6 g/cm<sup>3</sup> <ref>Pradyot Patnaik. ''Handbook of Inorganic Chemicals''. McGraw-Hill, 2002, {{ISBN|0-07-049439-8}}</ref> |
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| Solubility = very slightly soluble |
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| Solubility = very slightly soluble |
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| SolubleOther = soluble in ], ] organic solvents |
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| SolubleOther = soluble in ], ] organic solvents |
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| MeltingPt = 170 °C |
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| MeltingPtC = 170 |
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| BoilingPt = 298 °C (decomposes) |
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| BoilingPtC = 298 |
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| BoilingPt_notes = (decomposes) |
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| MagSus = −67.0·10<sup>−6</sup> cm<sup>3</sup>/mol |
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| Section3 = {{Chembox Structure |
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|Section3={{Chembox Structure |
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| CrystalStruct = ], ] |
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| CrystalStruct = ], ] |
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| SpaceGroup = I4<sub>1</sub>/amd, No. 141 |
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| SpaceGroup = I4<sub>1</sub>/amd, No. 141 |
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}} |
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| Section7 = {{Chembox Hazards |
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|Section7={{Chembox Hazards |
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| EUClass = |
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| NFPA-H = 2 |
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| NFPA-H = 2 |
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| NFPA-R = 0 |
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| NFPA-R = 0 |
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| NFPA-F = 0 |
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| NFPA-F = 0 |
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| ExternalMSDS = |
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| ExternalSDS = |
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'''Gold(I) chloride''' is a compound of ] and ] with the ] AuCl. |
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==Preparation== |
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Gold(I) chloride is prepared by thermal decomposition of ]. |
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==Reactions== |
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Although there is a region of stability at higher temperatures at the appropriate chlorine vapor pressures, the compound is metastable at ambient conditions. When heated with water, the compound ] to metallic gold and gold(III) chloride in an autoredox reaction: |
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: 3 AuCl → 2 Au + AuCl<sub>3</sub> |
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At still higher temperatures, around 500 °C, all gold chlorides convert to gold. This conversion is key to the ], which is widely used for the purification of gold.<ref name=Ullmann>{{cite book |doi=10.1002/14356007.a12_499|chapter=Gold, Gold Alloys, and Gold Compounds |title=Ullmann's Encyclopedia of Industrial Chemistry |year=2000 |last1=Renner |first1=Hermann |last2=Schlamp |first2=Günther |last3=Hollmann |first3=Dieter |last4=Lüschow |first4=Hans Martin |last5=Tews |first5=Peter |last6=Rothaut |first6=Josef |last7=Dermann |first7=Klaus |last8=Knödler |first8=Alfons |last9=Hecht |first9=Christian |last10=Schlott |first10=Martin |last11=Drieselmann |first11=Ralf |last12=Peter |first12=Catrin |last13=Schiele |first13=Rainer |isbn=3527306730 }}</ref> |
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Reaction with ] yields potassium auric bromide and ] with separation of metallic gold: |
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: 3 AuCl + 4 KBr → KAuBr<sub>4</sub> + 2 Au + 3 KCl |
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==Safety== |
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Gold(I) chloride may irritate the skin and eyes, damage kidney function, and reduce white blood cell counts. |
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==References== |
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{{reflist}} |
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{{Gold compounds}} |
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{{Chlorides}} |
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] |
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] |
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] |
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] |