過氧化鎘

過氧化鎘
英文名	Cadmium peroxide
識別
CAS號	12139-22-9
PubChem	82941
SMILES	[O-][O-].[Cd+2];
性質
化學式	CdO2
摩爾質量	144.41 g·mol−1
外觀	白色至黃色固體
密度	5.93 g·cm−3
熔點	180–200 °C（分解）
溶解性（水）	難溶
	若非註明，所有數據均出自標準狀態（25 ℃，100 kPa）下。

過氧化鎘是鎘的過氧化物，化學式 CdO₂。

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製備

過氧化鎘可以由鎘鹽（例如乙酸鎘、硝酸鎘或硫酸鎘）和大量的氨水反應生成 Cd(NH₃)₄²⁺陽離子後，再加入30% 過氧化氫，產生過氧化鎘的奶油色沉澱。^[2]^[3]

{\ce {CdSO4 + 2 NH4OH + H2O2 -> CdO2 + (NH4)2SO4 + 2 H2O}}

它也可以由金屬鎘或氧化鎘直接和過氧化氫反應而成：^[1]^[4]

{\ce {CdO + H2O2 -> CdO2 + O2}}

過氧化鎘還可以由硝酸鎘和超氧化鉀在液氨中反應而成，此反應可以得到無水過氧化鎘。^[5]

性質

過氧化鎘是白色至黃色的粉末，在室溫下緩慢分解，難溶於水。它和稀酸反應，產生對應的鎘鹽和過氧化氫。^[1]過氧化鎘加熱到180 °C時分解成氧化鎘和氧氣：^[2]

{\ce {2 CdO2 -> 2 CdO + O2}}

過氧化鎘呈黃鐵礦結構，空間群 Pa3 (No. 205)。它的二水合物在110 °C下失水。^[2]

用處

過氧化鎘可用來生產用於光學用途的氧化鎘薄膜。^[6]

參考資料

[1]
Milan Pušelj, Zvonimir Ban, Jasmina Morvaj, On the Peroxydes of Zinc and Cadmium: 283–288, 1985, ISSN 0011-1643, OCLC 664150129
[2]
Hoffman, C. W. W.; Ropp, R. C.; Mooney, R. W. Preparation, Properties and Structure of Cadmium Peroxide. Journal of the American Chemical Society (American Chemical Society (ACS)). 1959, 81 (15): 3830–3834. ISSN 0002-7863. doi:10.1021/ja01524a008.
[3]
Macintyre, J. E.; Chapman and Hall. Dictionary of inorganic compounds. London: Chapman & Hall. 1992: 2805. ISBN 0-412-30120-2. OCLC 26338506.
[4]
Saxena, P. B. Chemistry of interhalogen compounds. New Delhi: Discovery Publishing House. 2007: 37. ISBN 81-8356-243-4. OCLC 878412232.
[5]
Vannerberg, Nils-Gösta. Peroxides, Superoxides, and Ozonides of the Metals of Groups Ia, IIa, and IIb. Progress in Inorganic Chemistry. Hoboken, NJ, USA: John Wiley & Sons, Inc. 2007-03-09. ISSN 1934-483X. doi:10.1002/9780470166055.ch3.
[6]
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, Growth of CdO films from CdO2 films by chemical bath deposition: Influence of the concentration of cadmium precursor: 25–29, 2015, ISSN 1665-3521, OCLC 1115991850

[Pušelj-1] [1]
Milan Pušelj, Zvonimir Ban, Jasmina Morvaj, On the Peroxydes of Zinc and Cadmium: 283–288, 1985, ISSN 0011-1643, OCLC 664150129

[Hoffmann-2] [2]
Hoffman, C. W. W.; Ropp, R. C.; Mooney, R. W. Preparation, Properties and Structure of Cadmium Peroxide. Journal of the American Chemical Society (American Chemical Society (ACS)). 1959, 81 (15): 3830–3834. ISSN 0002-7863. doi:10.1021/ja01524a008.

[Jane_E._Macintyre-3] [3]
Macintyre, J. E.; Chapman and Hall. Dictionary of inorganic compounds. London: Chapman & Hall. 1992: 2805. ISBN 0-412-30120-2. OCLC 26338506.

[4] [4]
Saxena, P. B. Chemistry of interhalogen compounds. New Delhi: Discovery Publishing House. 2007: 37. ISBN 81-8356-243-4. OCLC 878412232.

[5] [5]
Vannerberg, Nils-Gösta. Peroxides, Superoxides, and Ozonides of the Metals of Groups Ia, IIa, and IIb. Progress in Inorganic Chemistry. Hoboken, NJ, USA: John Wiley & Sons, Inc. 2007-03-09. ISSN 1934-483X. doi:10.1002/9780470166055.ch3.

[6] [6]
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, Growth of CdO films from CdO2 films by chemical bath deposition: Influence of the concentration of cadmium precursor: 25–29, 2015, ISSN 1665-3521, OCLC 1115991850

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