查看“︁重铀酸铵”︁的源代码

{{Chembox
|   Name = 重鈾酸銨
|   ImageFile = AmmoniumUranate.PNG
<!-- | ImageSize = 200px -->
|   ImageName = 
|   ImageFile2 = Yellowcake_in_a_test_tube.jpg
|   IUPACName =ammonium diuranate 
|   OtherNames =黃餅 
| Section1 = {{Chembox Identifiers
| CASNo = 7783-22-4 
| CASNo_Ref = {{cascite|changed|??}}
| CASNo1 = 7783-22-4
| CASNo1_Ref = {{cascite|changed|??}}
|    RTECS  =  
  |  ChemSpiderID_Ref  = {{chemspidercite|correct|chemspider}}|  ChemSpiderID  =  170692
|  StdInChI_Ref  = {{stdinchicite|correct|chemspider}}|  StdInChI  =  1S/2H3N.7O.2U/h2*1H3;;;;;;;;;/q;;7*-2;;/p+2
|  StdInChIKey_Ref  = {{stdinchicite|correct|chemspider}}|  StdInChIKey  =  ZAASRHQPRFFWCS-UHFFFAOYSA-P
|  PubChem  =  197096

}}
| Section2 = {{Chembox Properties
|   Formula =  (NH<sub>4</sub>)<sub>2</sub>U<sub>2</sub>O<sub>7</sub>
|   MolarMass =624
|   Appearance = 浅黄色固体
|   Density = 
|   Solubility = 不溶于水。
|   MeltingPt = 260℃(分解)
|   BoilingPt = 
  }}
| Section3 = {{Chembox Structure
|   Coordination = 
|   CrystalStruct = 
  }}
| Section7 = {{Chembox Hazards
|   ExternalMSDS =
|   MainHazards =具有[[放射性]] 
|   RPhrases = 
|   SPhrases = 
  }}
| Section8 = {{Chembox Related
|   OtherCations =  }}
}}
'''重鈾酸銨'''（(NH<sub>4</sub>)<sub>2</sub>U<sub>2</sub>O<sub>7</sub>），是一種淺黃色的[[化學物質]]，是加工天然[[铀矿|铀礦石]]的過程中的過渡产物。重鈾酸銨具有[[放射性]]。重鈾酸銨加熱至260℃時會分解成[[三氧化铀]]。

==制备==
铀酰盐（UO<sub>2</sub><sup>2+</sup>）在氨水的作用下可以转化为重铀酸铵。<ref>[https://ja.wikipedia.org/wiki/%E9%87%8D%E3%82%A6%E3%83%A9%E3%83%B3%E9%85%B8%E3%82%A2%E3%83%B3%E3%83%A2%E3%83%8B%E3%82%A6%E3%83%A0 重ウラン酸アンモニウム] {{Wayback|url=https://ja.wikipedia.org/wiki/%E9%87%8D%E3%82%A6%E3%83%A9%E3%83%B3%E9%85%B8%E3%82%A2%E3%83%B3%E3%83%A2%E3%83%8B%E3%82%A6%E3%83%A0 |date=20210403172130 }}{{Ja}}. 2016-8-7</ref>

反應式为：<chem>2UO2^2+(aq) + 6NH3(aq) + 3H2O(l) -> (NH4)2U2O7(s) + 4NH4^+(aq)</chem>

==参考文献==
{{reflist}}

{{铀化合物}}

{{無機化合物小作品}}

[[Category:銨鹽]]
[[Category:铀酸盐]]