Editing Copper(II) chloride (section)

{{good article}}
{{chembox
| Verifiedfields = changed
| Watchedfields  = changed
| verifiedrevid  = 476995602
| ImageFile      = Cupric chloride.jpg
| ImageCaption   = Dihydrate
| ImageFile1     = Copper(II) chloride.jpg
| ImageCaption1  = Anhydrous
| IUPACName      = Copper(II) chloride
| OtherNames     = Cupric chloride
| Section1       = {{Chembox Identifiers
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 148374
| ChEMBL_Ref = {{ebicite|correct|EBI}}
| ChEMBL = 1200553
| InChI = 1/2ClH.Cu/h2*1H;/q;;+2/p-2/rCl2Cu/c1-3-2
| ChEBI_Ref = {{ebicite|correct|EBI}}
| ChEBI = 49553
| SMILES = [Cu+2].[Cl-].[Cl-]
| SMILES_Comment = anhydrous
| SMILES1 = Cl[Cu-2](Cl)([OH2+])[OH2+]
| SMILES1_Comment = dihydrate
| InChIKey = ORTQZVOHEJQUHG-LRIOHBSEAE
| InChI1 = 1/2ClH.Cu/h2*1H;/q;;+2/p-2
| InChIKey1 = ORTQZVOHEJQUHG-NUQVWONBAE
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/2ClH.Cu/h2*1H;/q;;+2/p-2
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = ORTQZVOHEJQUHG-UHFFFAOYSA-L
| CASNo = 7447-39-4
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo2_Ref = {{cascite|correct|CAS}}
| CASNo2 = 10125-13-0
| CASNo2_Comment= (dihydrate)
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = P484053J2Y
| UNII2_Ref = {{fdacite|correct|FDA}}
| UNII2 = S2QG84156O
| UNII2_Comment = (dihydrate)
| PubChem = 24014
| RTECS = GL7000000
| Gmelin = 9300
| Beilstein = 8128168
| DrugBank = DB09131
| UNNumber = 2802
| EC_number = 231-210-2
}}
| Section2       = {{Chembox Properties
| Formula = {{chem2|CuCl2
}}
| MolarMass = 134.45 g/mol (anhydrous)<br />170.48 g/mol (dihydrate)
| Appearance = dark brown solid (anhydrous)<br />light blue solid (dihydrate)
| Odor = odorless
| Density = 3.386 g/cm<sup>3</sup> (anhydrous) <br /> 2.51 g/cm<sup>3</sup> (dihydrate)
| Solubility = 70.6 g/(100 mL) (0 °C) <br> 75.7 g/(100 mL) (25 °C) <br> 107.9 g/(100 mL) (100 °C)
| SolubleOther = ''methanol:''<br>68 g/(100 mL) (15 °C)
<br/>''ethanol:''<br>53 g/(100 mL) (15 °C) <br> soluble in [[acetone]]
| MeltingPtC = 630
| MeltingPt_notes = (extrapolated)<br /> 100 °C (dehydration of dihydrate)
| BoilingPtC = 993
| BoilingPt_notes = (anhydrous, decomposes)
| MagSus = +1080·10<sup>−6</sup> cm<sup>3</sup>/mol
}}
| Section3       = {{Chembox Structure
| Structure_ref = <ref>{{cite journal |author1=A. F. Wells |title=The crystal structure of anhydrous cupric chloride, and the stereochemistry of the cupric atom |journal=Journal of the Chemical Society |date=1947 |pages=1670–1675 |doi=10.1039/JR9470001670 |language=en}}</ref><ref>{{cite journal |author1=Sydney Brownstein |author2=Nam Fong Han |author3=Eric Gabe |author4=Yvon LePage |title=A redetermination of the crystal structure of cupric chloride dihydrate |journal=Zeitschrift für Kristallographie |date=1989 |volume=189 |issue=1 |pages=13–15 |doi=10.1524/zkri.1989.189.1-2.13 |bibcode=1989ZK....189...13B |language=en}}</ref>
| CrystalStruct = [[monoclinic crystal structure|monoclinic]] (β = 121°) (anhydrous) <br> [[orthorhombic crystal structure|orthorhombic]] (dihydrate)
| SpaceGroup = C2/m (anhydrous) <br> ''Pbmn'' (dihydrate)
| PointGroup = 
| LattConst_a = 6.85&nbsp;Å (anhydrous) <br> 7.41&nbsp;Å (dihydrate)
| LattConst_b = 3.30&nbsp;Å (anhydrous) <br> 8.09&nbsp;Å (dihydrate)
| LattConst_c = 6.70&nbsp;Å (anhydrous) <br> 3.75&nbsp;Å (dihydrate)
| UnitCellVolume = 
| UnitCellFormulas = 
| Coordination = [[Octahedron|Octahedral]]
| MolShape = 
| OrbitalHybridisation = 
| Dipole = 
 }}
| Section7       = {{Chembox Hazards
| ExternalSDS = [https://fscimage.fishersci.com/msds/05625.htm Fisher Scientific]
| NFPA-H = 2
| NFPA-F = 0
| NFPA-R = 1
| GHSPictograms = {{GHS05}}{{GHS06}}{{GHS07}}{{GHS09}}
| GHSSignalWord = Danger
| HPhrases = {{H-phrases|301|302|312|315|318|319|335|410|411}}
| PPhrases = {{P-phrases|261|264|270|271|273|280|301+310|301+312|302+352|304+340|305+351+338|310|312|321|322|330|332+313|337+313|362|363|391|403+233|405|501}}
| FlashPt = Non-flammable
| PEL = TWA 1 mg/m<sup>3</sup> (as Cu)<ref name=PGCH>{{PGCH|0150}}</ref>
| REL = TWA 1 mg/m<sup>3</sup> (as Cu)<ref name=PGCH/>
| IDLH = TWA 100 mg/m<sup>3</sup> (as Cu)<ref name=PGCH/>
}}
| Section8       = {{Chembox Related
| OtherAnions = [[Copper(II) fluoride]]<br />[[Copper(II) bromide]]
| OtherCations = [[Copper(I) chloride]]<br />[[Silver chloride]]<br />[[Gold(III) chloride]]
}}
}}
'''Copper(II) chloride''', also known as '''cupric chloride''', is an [[inorganic compound]] with the [[chemical formula]] {{chem2|CuCl2|auto=1}}. The [[monoclinic crystal system|monoclinic]] yellowish-brown [[anhydrous]] form slowly absorbs moisture to form the orthorhombic blue-green [[hydrate|dihydrate]] {{chem2|CuCl2*2H2O}}, with two [[water of crystallization|water molecules of hydration]]. It is industrially produced for use as a [[catalyst|co-catalyst]] in the [[Wacker process]].

Both the anhydrous and the dihydrate forms occur naturally as the rare minerals '''tolbachite''' and '''eriochalcite''', respectively.