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三碘化铵

三碘化铵
IUPAC名
azanium;triiodide
识别
CAS号 12298-32-7  checkY
PubChem 22991060
ChemSpider 13206303
SMILES
 
  • [NH4+].I[I-]I
InChI
 
  • 1/I3.H3N/c1-3-2;/h;1H3/q-1;/p+1
InChIKey ZAAKNRTWGPSIKF-IKLDFBCSAD
性质
化学式 H4I3N
摩尔质量 398.75 g·mol−1
外观 暗蓝色片状晶体[1]
熔点 分解[1]
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

三碘化铵(Ammonium triiodide)是三碘阴离子离子形成的,化学式为NH4I3。它是暗蓝色的片状晶体,仅在潮湿空气中潮解。[1]

它可由碘化铵在水溶液中反应得到[2]

三碘化铵是正交晶系的晶体,空间群Pnma,晶胞参数a=10.854, b=6.620, c=9.595。[3]

参考资料

  1. ^ 1.0 1.1 1.2 George Stillingfleet Johnson. XLVI.—On ammonium triiodide. J. Chem. Soc., Trans. 1878, 33 (0): 397–401 [2022-09-13]. ISSN 0368-1645. doi:10.1039/CT8783300397 (英语). 
  2. ^ Cheesman, G. H.; Finney, A. J. T. Refinement of the structure of ammonium triiodide, NH4I3. Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. 1970, 26 (7): 904–906. ISSN 0567-7408. doi:10.1107/S0567740870003357. 
  3. ^ Tebbe, K. F.; Freckmann, B.; Hoerner, M.; Hiller, W.; Straehle, J. Polyhalides. 7. Confirmation of the crystal structure of ammonium triiodides, NH4I3(德文). Acta Crystallographica, Section C: Crystal Structure Communications, 1985. 41 (5): 660-663. ISSN: 0108-2701

参见

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三碘化铵
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