硫化铵

硫化铵

2

识别
CAS号 12135-76-1  checkY
ChemSpider 23808
InChI
 
  • 1/2H3N.S/h2*1H3;/q;;-2/p+2
InChIKey UYJXRRSPUVSSMN-SKRXCDHZAF
UN编号 2683 (solution)
RTECS BS4900000
性质
化学式 (NH4)2S
摩尔质量 68.142 g·mol⁻¹
外观 无色晶体(<−18 °C)[1]
沸点 −18 °C(分解)
溶解性 反应
危险性
警示术语 R:R11-R23/24/25
主要危害 有毒
NFPA 704
3
3
0
 
相关物质
其他阴离子 硫酸铵
其他阳离子 硫化钠
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

硫化銨,化學式為(NH4)2S。通常使用的是它的水溶液,固态不稳定,曝露在空氣中會形成多硫化物硫代硫酸鹽。可用於攝影顯色劑等。

制备

硫化铵溶液,更准确地讲是硫氢化铵溶液,可由硫化氢通入氨水微热制得。[2]浓氨水中通入硫化氫在常温下得到(NH4)2S·2NH4HS,0 °C再通入硫化氢则得到(NH4)2S·12NH4HS。[3]用冰冷却,且不断通入硫化氢,会得到硫氢化铵溶液。

该溶液可溶解生成多硫化物铵盐:

参考资料

  1. ^ Ryu Sato. John Wiley & Sons, Ltd , 编. Ammonium Sulfide. Chichester, UK: John Wiley & Sons, Ltd. 2001-04-15 [2022-11-24]. ISBN 9780471936237. doi:10.1002/047084289x.ra097. (原始内容存档于2022-11-08) (英语). 
  2. ^ Goodman, J. T.; Rauchfuss, T. B., (2002). "Tetraethylammonium-tetrathioperrhenate [Et4N][ReS4]". Inorganic Syntheses 33: 107-110.
  3. ^ W. P. Bloxam (1895). "The Sulphides and Polysulphides of Ammonium". J. Chem. Soc., Trans. 67: 283. doi:10.1039/CT8956700277.

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