Editing Copper(II) oxide (section)

{{Short description|Chemical compound – an oxide of copper with formula CuO}}
{{chembox
| Verifiedfields = changed
| verifiedrevid  = 476999309
| ImageFile      = copperIIoxide.jpg
| ImageSize      = 
| ImageFile1     = Copper(II)-oxide-unit-cell-3D-balls.png
| ImageSize1     = 
| ImageFile2     = Copper(II)-oxide-3D-balls.png
| ImageSize2     = 
| IUPACName      = Copper(II) oxide
| OtherNames     = Cupric oxide
| Section1       = {{Chembox Identifiers
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 144499
| ChEBI_Ref = {{ebicite|changed|EBI}}
| ChEBI = 75955
| ChEMBL_Ref = {{ebicite|changed|EBI}}
| ChEMBL = 1909057
| SMILES = [Cu]=O
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = V1XJQ704R4
| InChIKey = QPLDLSVMHZLSFG-PHEGLCPBAN
| InChI1 = 1/Cu.O/q+2;-2
| InChIKey1 = KKCXRELNMOYFLS-UHFFFAOYAT
| SMILES1 = [Cu+2].[O-2]
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/Cu.O/q+2;-2
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = KKCXRELNMOYFLS-UHFFFAOYSA-N
| CASNo = 1317-38-0
| CASNo_Ref = {{cascite|correct|CAS}}
| EC_number = 215-269-1
| PubChem = 14829
| InChI = 1/Cu.O/rCuO/c1-2
| RTECS = GL7900000
}}
| Section2       = {{Chembox Properties
| Formula = CuO
| MolarMass = 79.545 g/mol
| Appearance = black to brown powder
| Density = 6.315 g/cm<sup>3</sup>
| MeltingPtC = 1326
| BoilingPtC = 2000
| Solubility = insoluble
| SolubleOther = soluble in [[ammonium chloride]], [[potassium cyanide]] <br> insoluble in [[ethanol|alcohol]], [[ammonium carbonate]] 
| BandGap = 1.2&nbsp;[[Electronvolt|eV]]
| pKa = 
| pKb = 
| RefractIndex = 2.63
| MagSus = +238.9·10<sup>−6</sup> cm<sup>3</sup>/mol
}}
| Section3       = {{Chembox Structure
| CrystalStruct = [[monoclinic]], [[Pearson symbol|mS8]]<ref name= "Hull">The effect of hydrostatic pressure on the ambient temperature structure of CuO, Forsyth J.B., Hull S., J. Phys.: Condens. Matter 3 (1991) 5257–5261, {{doi|10.1088/0953-8984/3/28/001}}.  [[Crystallographic point group]]: 2/m or ''C<sub>2h</sub>''. [[Space group]]: C2/c.  Lattice parameters: ''a'' = 4.6837(5), ''b'' = 3.4226(5), ''c'' = 5.1288(6), ''α'' = 90°, ''β'' = 99.54(1)°, ''γ'' = 90°.</ref>
| SpaceGroup = C2/c, #15
| LattConst_a = 4.6837
| LattConst_b = 3.4226
| LattConst_c = 5.1288
| LattConst_beta = 99.54
| Coordination = 
}}
| Section4       = {{Chembox Thermochemistry
| DeltaHf = −156&nbsp;kJ·mol<sup>−1</sup>
| Entropy = 43&nbsp;J·mol<sup>−1</sup>·K<sup>−1</sup>
 }}
| Section7       = {{Chembox Hazards
| ExternalSDS = [https://fscimage.fishersci.com/msds/05655.htm Fisher Scientific]
| GHSPictograms = {{GHS07}}{{GHS09}}
| GHSSignalWord = Warning
| HPhrases = {{H-phrases|302|410|412}}
| PPhrases = {{P-phrases|P264|P270|P273|P301+P317|P330|P391|P501}}
| MainHazards = 
| NFPA-H = 2
| NFPA-F = 0
| NFPA-R = 1
| NFPA-S = 
| 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) sulfide]]
| OtherCations = [[Nickel(II) oxide]]<br/>[[Zinc oxide]]
| OtherFunction = 
| OtherFunction_label = 
| OtherCompounds = [[Copper(I) oxide]]
}}
}}

'''Copper(II) oxide''' or '''cupric oxide''' is an [[inorganic compound]] with the formula CuO.  A black solid, it is one of the two stable [[oxide]]s of [[copper]], the other being Cu<sub>2</sub>O or [[copper(I) oxide]] (cuprous oxide).  As a [[mineral]], it is known as [[tenorite]], or sometimes black copper.  It is a product of [[Copper extraction|copper mining]] and the precursor to many other copper-containing products and chemical compounds.<ref name=Ullmann>{{Ullmann|first1=H. Wayne|last1=Richardson |title=Copper Compounds|year=2002|doi=10.1002/14356007.a07_567}}</ref>