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氫氧化錫

氫氧化錫

IUPAC名
Tin(IV) hydroxide
别名 氢氧化锡(IV)
正锡酸
识别
CAS号 12054-72-7  checkY
SMILES
 
  • [Sn+4].[OH-].[OH-].[OH-].[OH-]
性质
化学式 Sn(OH)4
摩尔质量 186.7 g·mol⁻¹
外观 白色固体[1]
熔点 分解
溶解性 难溶
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

氫氧化錫,是一種無機化合物,是氫氧化物,两性偏酸性,化學式為Sn(OH)4[1]

制备

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四氯化锡用冰水稀释,得到氧氯化锡(SnOCl2)的溶液,在溶液中逐滴加入氨水,可以得到氢氧化锡的水合物。[2]

SnOCl2 + 2 NH3·H2O → Sn(OH)4 + 2 NH4Cl

性质

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氢氧化锡在100 °C的水中回流,发生分解,生成二氧化锡[2]

Sn(OH)4 → SnO2 + 2 H2O

在该反应中,是否使用超声对反应也会产生影响。[3]此外,电化学研究表明,Sn(OH)4超过其饱和浓度时,有生成热力学上更稳定的SnO2·xH2O的趋势。[4]

参考文献

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  1. ^ 1.0 1.1 扬宏孝 等. 无机化学(第四版). 高等教育出版社, 2010. pp 350-351. 1. 锡、铅的氧化物和氢氧化物 ISBN 978-7-04-028478-2
  2. ^ 2.0 2.1 Sanjay R. Dhage, S. P. Gaikwad, Violet Samuel, V. Ravi. Synthesis of nanocrystalline SnO2 powder at 100°C. Bulletin of Materials Science. 2004-06-01, 27 (3): 221–222 [2019-01-30]. ISSN 0973-7669. doi:10.1007/BF02708509 (英语). 
  3. ^ Russameeruk Noonuruk, Wanichaya Mekprasart, Narongdet Wongpisutpaisan, Naratip Vittayakorn, Wisanu Pecharapa. SnO2 Nanoparticle Synthesized by Ultrasonic-Assisted Process. Advanced Materials Research. 2013-09, 770: 299–302 [2019-02-02]. ISSN 1662-8985. doi:10.4028/www.scientific.net/amr.770.299. 
  4. ^ Nobl F. El Boraei, Sayed S. Abd El Rehim. Electrochemical behavior of tin anode in ascorbic acid solutions. Materials Chemistry and Physics. 2018-08-15, 215: 332–338 [2019-01-30]. ISSN 0254-0584. doi:10.1016/j.matchemphys.2018.05.040. 

参见

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氫氧化錫
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