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高氙酸钠

高氙酸钠

Struktur des Na+-Ions Struktur des Na+-Ions Struktur des Perxenat-Ions

英文名 Sodium perxenate
识别
CAS号 13721-44-3(无水)  checkY
15842-33-8(八水)  checkY
SMILES
 
  • [Na+].[Na+].[Na+].[Na+].[O-]Xe(=O)(=O)([O-])([O-])[O-]
性质
化学式 Na4XeO6
外观 白色粉末
溶解性 难溶[1]
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

高氙酸钠,化学式 Na4XeO6,是高氙酸盐。

制备

高氙酸钠可以由三氧化氙 XeO3氢氧化钠 NaOH和臭氧 O3反应而成:[2]

它也可以由六氟化氙 XeF6和氢氧化钠反应而成:[3][4]

高氙酸钠也可以由氙酸氢根 HXeO4在氢氧化钠中歧化而成,但产率低于50%。[5]

性质

物理性质

高氙酸钠有六水合物(Na4XeO6 · 6 H2O)和八水合物(Na4XeO6 · 8 H2O)。它们都是正交晶系的。

高氙酸钠的六水合物的空间群为 Pbca (No. 61),晶格参数 a = 18.44 Å、b = 10.103 Å 和c = 5.873 Å。[3]它的八水合物的空间群则是 Pbca (No. 60),晶格参数 a = 11.86 Å、b = 10.36 Å和c = 10.43 Å。[4]

化学性质

和其它高氙酸盐一样,高氙酸钠是一种稳定的强氧化剂[6]它可以把镅从+3氧化态氧化到+6,把+2氧化态的锰氧化到+7:[7][8]

它和六氟化氙 XeF6 反应,形成二氟三氧化氙 XeO3F2[6]

参见

参考资料

  1. ^ Competition Science Vision. Pratiyogita Darpan. 1999-05: 342. 
  2. ^ Glen E. Rodgers, Descriptive Inorganic, Coordination, and Solid State Chemistry, Cengage Learning: pp. 578, (德文) 
  3. ^ 3.0 3.1 Allan Zalkin, J. D. Forrester, David H. Templeton, The Crystal Structure of Sodium Perxenate Hexahydrate, Inorg. Chem.: pp. 1417–1421, (德文) 
  4. ^ 4.0 4.1 James A. Ibers, Walter C. Hamilton, D. R. MacKenzie, The Crystal Structure of Sodium Perxenate Octahydrate, Inorg. Chem.: pp. 1412–1416, (德文) 
  5. ^ William L. Jolly, Inorganic Syntheses, 11, John Wiley & Sons: pp. 211, (德文) 
  6. ^ 6.0 6.1 Allen J. Bard, Standard Potentials in Aqueous Solution, Routledge: pp. 28–89, (德文) 
  7. ^ H. P. Holcomb, Analytical Oxidation of Americium with Sodium Perxenate, Anal. Chem.: pp. 415, (德文) 
  8. ^ F. Feigl, V. Anger, Spot Tests in Inorganic Analysis, Elsevier: pp. 298, (德文) 

扩展阅读

  • 张青莲 等. 无机化学丛书 第一卷 稀有气体 氢 碱金属. 科学出版社
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高氙酸钠
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