硝酸ポロニウム(IV)のソースを表示

{{Chembox
| ImageFile = 
| ImageSize = 
| ImageAlt = 
| PIN = 
| OtherNames = Polonium tetranitrate
|Section1={{Chembox Identifiers
| index1_label = 
| index4_label = 
| CASNo = 66256-55-1
| ChemSpiderID = 23352125
| DTXSID = 
| UNII_Ref = {{fdacite|changed|FDA}}
| UNII = 
|  EINECS = 266-278-2
|  PubChem = 23638965
|  SMILES = [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Po]
|  StdInChI = 1S/4NO3.Po/c4*2-1(3)4;/q4*-1;
|  StdInChIKey = QQOAUYKHHFTXBZ-UHFFFAOYSA-N
 }}
|Section2={{Chembox Properties
| Formula =  Po(NO<sub>3</sub>)<sub>4</sub>
| MolarMass = 	457.00
| Appearance = 白色結晶
| Density = 
| MeltingPtC = 
| BoilingPtC = 
| Solubility = 可溶}}
|Section3={{Chembox Hazards
| MainHazards = 
| GHSPictograms = 
| GHSSignalWord = Warning
| HPhrases = 
| PPhrases = 
| FlashPtC = 
| AutoignitionPt = }}
|Section6={{Chembox Related
| OtherCompounds = [[硝酸アメリシウム(III)]]
}}
}}
'''硝酸ポロニウム(IV)'''(Polonium tetranitrate)は、[[ポロニウム]]と[[硝酸]]の[[塩 (化学)|塩]]であり、化学式はPo(NO<sub>3</sub>)<sub>4</sub>である<ref>{{cite journal |last1=Bagnall |first1=K. W. |last2=Robertson |first2=D. S. |last3=Stewart |first3=M. a. A. |title=726. The polonium nitrates |journal=Journal of the Chemical Society |date=1 January 1958 |pages=3633–3636 |doi=10.1039/JR9580003633 |url=https://pubs.rsc.org/en/content/articlelanding/1958/jr/jr9580003633/unauth |accessdate=20 August 2021 |language=en |issn=0368-1769}}</ref>。

[[放射性]]を持っており、白色[[結晶]]となる<ref>{{cite book |last1=Schmidt |first1=M. |last2=Siebert |first2=W. |last3=Bagnall |first3=K. W. |title=The Chemistry of Sulphur, Selenium, Tellurium and Polonium: Pergamon Texts in Inorganic Chemistry |date=22 October 2013 |publisher=Elsevier |isbn=978-1-4831-5865-5 |page=986 |url=https://books.google.com/books?id=igJPDAAAQBAJ&q=Polonium+tetranitrate&pg=PA986 |accessdate=20 August 2021 |language=en}}</ref><ref>{{cite book |title=Advances in Inorganic Chemistry and Radiochemistry |date=1 January 1962 |publisher=Academic Press |isbn=978-0-08-057853-8 |page=220 |url=https://books.google.com/books?id=8qePsa3V8GQC&q=Polonium+tetranitrate&pg=PA220 |accessdate=20 August 2021 |language=en}}</ref>。

==合成==
濃硝酸に金属ポロニウムを溶解させる。
::<math>\mathsf{ Po + 8 HNO_3 \ \xrightarrow{}\ Po(NO_3)_4 + 4 NO_2\uparrow + 4 H_2O }</math>

==物理的性質==
白色<ref>{{cite book |last1=Schweitzer |first1=George K. |last2=Pesterfield |first2=Lester L. |title=The Aqueous Chemistry of the Elements |date=14 January 2010 |publisher=Oxford University Press |isbn=978-0-19-974219-6 |page=243 |url=https://books.google.com/books?id=-TNhhlGcCzwC&q=%22Po%28NO3%294%22+polonium&pg=PA243 |accessdate=20 August 2021 |language=en}}</ref>または無色<ref>{{cite book |title=Inorganic Chemistry |date=2012 |publisher=PHI Learning Pvt. Ltd. |isbn=978-81-203-4308-5 |page=494 |url=https://books.google.com/books?id=8KAemlQzOj8C&q=%22Po%28NO3%294%22+polonium&pg=PA494 |accessdate=20 August 2021 |language=en}}</ref>の結晶を作る。

[[加水分解]]を伴って、水に溶ける。

==化学的性質==
希硝酸中で、[[不均化]]する。
It disproportionates in aqueous weakly acidic nitric acid solutions:
::<math>\mathsf{ 2 Po(NO_3)_4 + 2H_2O \ \xrightarrow{}\ PoO_2(NO_3)_2\downarrow + Po^{{2+}}  + 2NO_3^- + 2HNO_3 }</math>

ポロニウムイオン(2+)は、硝酸で酸化され、ポロニウム4+)になる。+).

==出典==
{{reflist}}
{{ポロニウムの化合物}}

{{デフォルトソート:しようさんほろにうむ(IV)}}
[[Category:ポロニウムの化合物]]
[[Category:硝酸塩]]