查看“︁三氧化二銅”︁的源代码

{{chembox
| verifiedrevid = 
| Name = 三氧化二銅
| ImageFile =
| ImageName = 
| OtherNames = 氧化銅(III)
|Section1={{Chembox Identifiers
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 8074624
| InChI = 1S/2Cu.3O/q;;3*-2
| InChIKey = NFFYXVOHHLQALV-UHFFFAOYSA-N
| SMILES = [O-2].[Cu+3].[O-2].[Cu+3].[O-2]
| CASNo = 163686-95-1
| CASNo_Ref = {{cascite|correct|CAS}}
| PubChem = 9898967
| RTECS =
| EINECS = 
}}
|Section2={{Chembox Properties	 
| Formula = Cu<sub>2</sub>O<sub>3</sub>
| MolarMass = 175.0902 g/mol
| Appearance = 紅色晶體
| Density = 
| Solubility =
| SolubleOther = 
| MeltingPtC = 75
| Melting_notes = 分解
| BoilingPt = 
}}
|Section4={{Chembox Thermochemistry
| DeltaHf =
| Entropy =
 }}
|Section7={{Chembox Hazards
| NFPA-H = 3
| NFPA-F = 0
| NFPA-R = 0
| NFPA-O = OX
| MainHazards = 強氧化劑
| ExternalSDS =
| LD50 = 
| PEL = 
| REL = 
| IDLH =  
}}
|Section8={{Chembox Related
| OtherAnions = 
| OtherCations = [[三氧化二鎳]]
| OtherFunction = 
| OtherFunction_label = 
| OtherCpds = [[氧化亞銅]]<br/>[[氧化銅]]
}}
}}
'''三氧化二銅'''是一種[[無機化合物]]，其化學式為Cu<sub>2</sub>O<sub>3</sub>。其為紅色晶體，不溶於水，在常溫及乾燥狀態下穩定。

其為[[銅酸鹽]][[高溫超導體]]的成分，<ref>Wang, L.S.; Wu, H.; Desai, S.R.; Lou, L., Electronic Structure of Small Copper Oxide Clusters: From Cu2O to Cu2O4, Phys. Rev. B: Cond. Matt., 1996, 53, 12, 8028. [doi:10.1103/PhysRevB.53.8028]</ref>如YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub>。三價銅在離子環境下通常變得穩定，如在[[六氟合銅(III)酸鉀]]中。

== 獲取 ==
在低溫下於鹼性溶液中可以[[過硫酸鉀]]或過磷酸二氫鉀來氧化[[氫氧化銅]]：
:<math>\mathsf{2Cu(OH)_2 + K_2S_2O_8 + 2KOH \ \xrightarrow{-23^oC}\ Cu_2O_3 + 2K_2SO_4 + 3H_2O }</math>

:<math>\mathsf{2Cu(OH)_2 + KH_2PO_5 + 2KOH \ \xrightarrow{-23^oC}\ Cu_2O_3 + K_3PO_4 + 4H_2O }</math>

== 化學性質 ==
在75°C或以上會分解：
:<math>\mathsf{2Cu_2O_3 \ \xrightarrow{75^oC}\ 4CuO + O_2\uparrow }</math>

在鹼性溶液中與[[高碘酸鉀]]加熱會產生反應，形式暗紅色溶液：
:<math>\mathsf{Cu_2O_3 + 4KIO_4 + 10KOH \ \xrightarrow{}\ 2K_5[Cu(HIO_6)_2] + 4H_2O }</math>

== 參考 ==
{{reflist}}
*Chemical encyclopedia / Editorial Board .: Knuniants IL etc. .. - M.: Soviet Encyclopedia, 1990 - V. 2 - 671 s. - {{ISBN|978-5-85270-035-3}}.
*R. Ripa, Chetyanu I. Inorganic Chemistry. Chemistry of Metals. - M.: Mir, 1972 - V. 2 - 871 s.


{{铜化合物}}
[[Category:铜化合物]]
[[Category:氧化物]]