查看“︁六氯合锇(IV)酸铵”︁的源代码

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|   CASNo = 12125-08-5
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| H=8 | N=2 | Os=1 | Cl=6
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|   Appearance = 深红色晶体<ref name=Dwyer>{{cite book|location=Hoboken, NJ, USA|isbn=9780470132364|publisher=John Wiley & Sons, Inc.|date=2007-01-05|pages=206–207|url=http://doi.wiley.com/10.1002/9780470132364.ch60|title=Ammonium Hexachloroosmate(IV)|accessdate=2020-12-23|editor=Therald Moeller|author=F. P. Dwyer, J. W. Hogarth, Richard N. Rhoda|doi=10.1002/9780470132364.ch60}}</ref><br>紫红色固体<ref name=Pal>Kemeny, Pal. Ammonium hexachloroosmate,  Suitable compound for nuclear physics experiments concerning osmium nucleus. ''Revue Roumaine de Physique'', 1967. 12 (8): 761-764. ISSN: 0035-4090.</ref>
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|   Solubility =  微溶于冷水，形成绿黄色溶液<ref name=Dwyer />}}
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'''六氯合锇(IV)酸铵'''是一种[[配位化合物]]，化学式为(NH<sub>4</sub>)<sub>2</sub>[OsCl<sub>6</sub>]。

==制备==

六氯合锇(IV)酸铵可由[[氯化亚铁]]在[[氯化铵]]和[[盐酸]]的存在下还原[[四氧化锇]]制得：<ref name=Dwyer />
: <chem>OsO4 + 4 FeCl2 + 8 HCl + 2 NH4Cl -> (NH4)2[OsCl6] + 4 FeCl3 + 4 H2O</chem>

==性质==
六氯合锇(IV)酸铵不会挥发或潮解，在170 °C以下的空气中稳定。<ref name=Pal />加热至390 °C<ref>{{cite journal|journal=Journal of the Less Common Metals|volume=170|issue=2|language=en|date=1991-06|pages=327–331|doi=10.1016/0022-5088(91)90336-3|url=https://linkinghub.elsevier.com/retrieve/pii/0022508891903363|title=Thermolysis of ternary ammonium chlorides of rhenium and the noble metals|accessdate=2020-12-23|author=Gerd Meyer, Angela Möller|archive-date=2018-06-11|archive-url=https://web.archive.org/web/20180611083838/https://linkinghub.elsevier.com/retrieve/pii/0022508891903363}}</ref>或在[[氢气]]流中加热，分解出金属[[锇]]：
: <chem>3 (NH4)2[OsCl6] -> 3 Os + 2 N2 ^ + 16 HCl ^ + 2 NH4Cl</chem>
: <chem>(NH4)2[OsCl6] + 2 H2 -> Os + 2 NH4Cl + 4 HCl ^</chem>
它和过量的水合[[肼]]反应，可以得到[Os(NH<sub>3</sub>)<sub>5</sub>(N<sub>2</sub>)]Cl<sub>2</sub>。<ref>{{cite book|location=Hoboken, NJ, USA|isbn=9780470132555|publisher=John Wiley & Sons, Inc.|date=2007-01-05|pages=269–277|url=http://doi.wiley.com/10.1002/9780470132555.ch73|title=Pentaammineosmium(III) and Hexaammineosmium(III) Complexes|accessdate=2020-12-23|editor=Jean'ne M. Shreeve|author=Peter A. Lay, Roy H. Magnuson, Henry Taube, Asbed Vassilian|doi=10.1002/9780470132555.ch73}}</ref>

==参考文献==
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{{铵盐}}
{{锇化合物}}

[[Category:铵盐]]
[[Category:四价锇化合物]]
[[Category:氯代酸盐]]