查看“︁过氧化镉”︁的源代码

{{Chembox
|ImageFile=FeS2structure.png
 | NameEn = Cadmium peroxide
|Section1={{Chembox Identifiers
 | CASNo= 12139-22-9
 | CASNo_Ref = {{cascite|correct|CAS}}
 | PubChem         = 82941
|SMILES=[O-][O-].[Cd+2]
}}
|Section2={{Chembox Properties
 | Appearance= 白色至黄色固体<ref name="Pušelj" /><ref name="Hoffmann">{{cite journal | last=Hoffman | first=C. W. W. | last2=Ropp | first2=R. C. | last3=Mooney | first3=R. W. | title=Preparation, Properties and Structure of Cadmium Peroxide | journal=Journal of the American Chemical Society | publisher=American Chemical Society (ACS) | volume=81 | issue=15 | year=1959 | issn=0002-7863 | doi=10.1021/ja01524a008 | pages=3830–3834}}</ref>
|Cd=1|O=2
 | Density= 5.93 g·cm<sup>−3</sup><ref name="Hoffmann" />
 | MeltingPt= 180–200 °C（分解）<ref name="Hoffmann" />
 | Solubility= 难溶<ref name="Pušelj" />
}}
}}

'''过氧化镉'''是[[镉]]的[[过氧化物]]，化学式 CdO<sub>2</sub>。

== 制备 ==
过氧化镉可以由镉盐（例如[[乙酸镉]]、[[硝酸镉]]或[[硫酸镉]]）和大量的[[氨水]]反应生成 Cd(NH<sub>3</sub>)<sub>4</sub><sup>2+</sup>阳离子后，再加入30% [[过氧化氢]]，产生过氧化镉的奶油色沉淀。<ref name="Hoffmann" /><ref name="Jane E. Macintyre">{{cite book | last=Macintyre | first=J. E. | author2=Chapman and Hall | title=Dictionary of inorganic compounds | url=https://archive.org/details/dictionaryofinor0004unse | publisher=Chapman & Hall | publication-place=London | date=1992 | isbn=0-412-30120-2 | oclc=26338506 |page=2805}}</ref>
:<chem>CdSO4 + 2 NH4OH + H2O2 -> CdO2 + (NH4)2SO4 + 2 H2O</chem>

它也可以由金属镉或[[氧化镉]]直接和过氧化氢反应而成：<ref name="Pušelj">{{citation |author=Milan Pušelj, Zvonimir Ban, Jasmina Morvaj |title=On the Peroxydes of Zinc and Cadmium |date=1985 |pages=283–288 |ISSN=0011-1643 | oclc=664150129}}</ref><ref>{{cite book | last=Saxena | first=P. B. | title=Chemistry of interhalogen compounds | publisher=Discovery Publishing House | publication-place=New Delhi | date=2007 | isbn=81-8356-243-4 | oclc=878412232 |page=37}}</ref>
:<chem>CdO + H2O2 -> CdO2 + O2</chem>

过氧化镉还可以由硝酸镉和[[超氧化钾]]在[[液氨]]中反应而成，此反应可以得到无水过氧化镉。<ref>{{cite book | last=Vannerberg | first=Nils-Gösta | title=Progress in Inorganic Chemistry | chapter=Peroxides, Superoxides, and Ozonides of the Metals of Groups Ia, IIa, and IIb | publisher=John Wiley & Sons, Inc. | publication-place=Hoboken, NJ, USA | date=2007-03-09 | issn=1934-483X | doi=10.1002/9780470166055.ch3}}</ref>

== 性质==
过氧化镉是白色至黄色的粉末，在室温下缓慢分解，难溶于水。它和稀酸反应，产生对应的镉盐和过氧化氢。<ref name="Pušelj" />过氧化镉加热到180 °C时分解成[[氧化镉]]和[[氧气]]：<ref name="Hoffmann" />
:<chem>2 CdO2 -> 2 CdO + O2</chem>
过氧化镉呈[[黄铁矿]]结构，空间群 Pa{{overline|3}} (No. 205)。它的二水合物在110 °C下失水。<ref name="Hoffmann" />

== 用处==
过氧化镉可用来生产用于光学用途的氧化镉薄膜。<ref>{{citation |author=E. Campos-González, A. Guillén-Cervantes, J. Santoyo-Salazar, O. Zelaya-Ángel, L. E. Ramírez-Velázquez, J. Santos-Cruz, S. A. Mayén-Hernández, F. de Moure-Flores, M. de la L. Olvera, G. Contreras-Puente, E. Campos-González, A. Guillén-Cervantes, J. Santoyo-Salazar, O. Zelaya-Ángel, L. E. Ramírez-Velázquez, J. Santos-Cruz, S. A. Mayén-Hernández, F. de Moure-Flores, M. de la L. Olvera, G. Contreras-Puente |title=Growth of CdO films from CdO2 films by chemical bath deposition: Influence of the concentration of cadmium precursor |date=2015 |pages=25–29 |ISSN=1665-3521 | oclc=1115991850}}</ref>

== 参考资料==
<references />
{{镉化合物}}
{{多氧化物}}

[[Category:镉化合物]]
[[Category:过氧化物]]