查看“︁草酸镎(IV)”︁的源代码

{{Chembox
| ImageFile = neptunium(IV) oxalate.png
| ImageSize = 
| ImageAlt = 
| PIN = 
| OtherNames = 二草酸镎<br>乙二酸镎(IV)
|Section1={{Chembox Identifiers
| CASNo = 20196-48-9
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo_Comment = 无水
| CASNo2 = 50837-31-5
| CASNo2_Ref = {{cascite|correct|CAS}}
| CASNo2_Comment = 六水
| ChemSpiderID = 
| DTXSID = 
| UNII_Ref = {{fdacite|changed|FDA}}
| UNII = 
|  EINECS = 
|  PubChem = 87766684
| StdInChI=1S/2C2H2O4.Np/c2*3-1(4)2(5)6;/h2*(H,3,4)(H,5,6);/p-4
| StdInChIKey = SSEVUKNDQSENCR-UHFFFAOYSA-J
| SMILES = C(=O)(C(=O)[O-])[O-].C(=O)(C(=O)[O-])[O-].[Np]
 }}
|Section2={{Chembox Properties
| Formula =  Np(C{{sub|2}}O{{sub|4}}){{sub|2}}
| MolarMass = 413.04
| Appearance =  绿色晶体
| Density = 
| MeltingPtC = 
| BoilingPtC = 
| Solubility = 微溶}}
|Section3={{Chembox Hazards
| MainHazards = 
| GHSPictograms = 
| GHSSignalWord = 危险
| HPhrases = 
| PPhrases = 
| FlashPtC = 
| AutoignitionPt = }}
|Section6={{Chembox Related
| OtherCompounds = [[Thorium dioxalate]]
}}
}}
'''草酸镎(IV)'''是[[镎]]形成的[[草酸盐]]，化学式为Np(C{{sub|2}}O{{sub|4}}){{sub|2}}。<ref>{{cite book |last1=Alburger |first1=D. E. |last2=Perlman |first2=I. |last3=Rasmussen |first3=J. O. |last4=Hyde |first4=Earl K. |last5=Seaborg |first5=Glenn T. |last6=Bishop |first6=George R. |last7=Wilson |first7=Richard |last8=Devons |first8=S. |last9=Goldfarb |first9=L. J. B. |last10=Blin-Stoyle |first10=R. J. |last11=Grace |first11=M. A. |title=Kernreaktionen III / Nuclear Reactions III |date=6 December 2012 |publisher=[[Springer Science & Business Media]] |isbn=978-3-642-45878-1 |page=234 |url=https://www.google.ru/books/edition/Kernreaktionen_III_Nuclear_Reactions_III/FqT1CAAAQBAJ?hl=en&gbpv=1&dq=Neptunium(IV)+oxalate&pg=PA234&printsec=frontcover |access-date=6 August 2021 |language=en}}</ref><ref>{{cite book |last1=Лидин |first1=Ростислав |last2=Молочко |first2=Вадим |last3=Андреева |first3=Лариса |title=Константы неорганических веществ. Справочник |date=2 February 2019 |publisher=Litres |isbn=978-5-04-077039-7 |page=52 |url=https://books.google.com/books?id=-cQ0DwAAQBAJ&q=%D0%9E%D0%BA%D1%81%D0%B0%D0%BB%D0%B0%D1%82+%D0%BD%D0%B5%D0%BF%D1%82%D1%83%D0%BD%D0%B8%D1%8F%28IV%29&pg=PA52 |access-date=6 August 2021 |language=ru |archive-date=2021-08-27 |archive-url=https://web.archive.org/web/20210827110638/https://books.google.com/books?id=-cQ0DwAAQBAJ&q=%D0%9E%D0%BA%D1%81%D0%B0%D0%BB%D0%B0%D1%82+%D0%BD%D0%B5%D0%BF%D1%82%D1%83%D0%BD%D0%B8%D1%8F(IV)&pg=PA52 }}</ref>它微溶于水，可以形成绿色的水合物晶体。<ref>{{cite book |last1=Luerkens |first1=D. W. |title=Neptunium (IV) oxalate solubility. [22, 45, 60/sup 0/C] |date=1 July 1983 |doi=10.2172/5904308 |url=https://digital.library.unt.edu/ark:/67531/metadc1102341/ |access-date=6 August 2021 |language=en |archive-date=2021-08-06 |archive-url=https://web.archive.org/web/20210806112621/https://digital.library.unt.edu/ark:/67531/metadc1102341/ }}</ref><ref>{{cite book |title=Encyclopedia of physics |date=1957 |publisher=[[Springer-Verlag]] |page=234 |url=https://www.google.ru/books/edition/Encyclopedia_of_physics/x8UrAAAAYAAJ?hl=en&gbpv=1&bsq=neptunium(IV)+oxalate&dq=neptunium(IV)+oxalate&printsec=frontcover |access-date=6 August 2021 |language=en}}</ref>它是镎提纯过程中的中间体。<ref>{{cite book |last1=Бекман |first1=Игорь |title=Неорганическая химия. Радиоактивные элементы 2-е изд., испр. и доп. Учебник для СПО |date=2 July 2021 |publisher=Litres |isbn=978-5-04-309059-1 |page=272 |url=https://www.google.ru/books/edition/%D0%9D%D0%B5%D0%BE%D1%80%D0%B3%D0%B0%D0%BD%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0%D1%8F_%D1%85%D0%B8%D0%BC%D0%B8%D1%8F/8EskEAAAQBAJ?hl=en&gbpv=1&dq=%D0%9E%D0%BA%D1%81%D0%B0%D0%BB%D0%B0%D1%82+%D0%BD%D0%B5%D0%BF%D1%82%D1%83%D0%BD%D0%B8%D1%8F(IV)&pg=PA272&printsec=frontcover |access-date=6 August 2021 |language=ru}}</ref><ref>{{cite book |last1=Morss |first1=L. R. |last2=Edelstein |first2=Norman M. |last3=Fuger |first3=Jean |title=The Chemistry of the Actinide and Transactinide Elements (Set Vol.1-6): Volumes 1-6 |date=21 October 2010 |publisher=[[Springer Science & Business Media]] |isbn=978-94-007-0211-0 |page=726 |url=https://www.google.ru/books/edition/The_Chemistry_of_the_Actinide_and_Transa/9vPuV3A0UGUC?hl=en&gbpv=1&dq=Neptunium(IV)+oxalate&pg=PA726&printsec=frontcover |access-date=6 August 2021 |language=en}}</ref>

它可由[[草酸]]沉淀Np(IV)溶液得到：<ref>{{cite journal |last1=Luerkens |first1=D. W. |title=Two-stage precipitation of neptunium (IV) oxalate |date=1983 |url=https://inis.iaea.org/search/search.aspx?orig_q=RN:15001203 |access-date=6 August 2021 |publisher=Du Pont de Nemours (E.I.) and Co. |language=en |journal= |archive-date=2021-08-06 |archive-url=https://web.archive.org/web/20210806112731/https://inis.iaea.org/search/search.aspx?orig_q=RN:15001203 }}</ref>
::<math>\mathsf{ NpCl_4 + 2H_2C_2O_4 \ \xrightarrow{}\ Np(C_2O_4)_2\cdot 6H_2O\downarrow + 4HCl }</math>

得到的六水合物是绿色晶体，难溶于丙酮，微溶于水。<ref>{{cite journal |last1=Luerkens |first1=D. W. |title=Neptunium (IV) oxalate solubility. [22, 45, 60/sup 0/C] |date=1983 |url=https://searchworks.stanford.edu/view/11342714 |access-date=6 August 2021 |publisher=[[Savannah River Laboratory]]; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy |journal= |archive-date=2021-08-06 |archive-url=https://web.archive.org/web/20210806103114/https://searchworks.stanford.edu/view/11342714 }}</ref>六水合物在加热时逐渐分解，至190~200 °C得到无水物，进一步加热至300 °C生成[[二氧化镎]]：<ref>{{cite journal |last1=Kozlova |first1=R. D. |last2=Karelin |first2=A. I. |last3=Lobas |first3=O. P. |last4=Matyukha |first4=V. A. |title=Thermal decomposition of neptunium(IV) oxalate |journal=Radiokhimiya |date=1984 |volume=26 |issue=3 |pages=311–316 |url=https://inis.iaea.org/search/search.aspx?orig_q=RN:16037484 |access-date=6 August 2021 |language=ru |issn=0033-8311 |archive-date=2021-08-06 |archive-url=https://web.archive.org/web/20210806100534/https://inis.iaea.org/search/search.aspx?orig_q=RN:16037484 }}</ref>
::<math>\mathsf{ Np(C_2O_4)_2 \ \xrightarrow{400^oC}\ NpO_2 + 2CO_2 + 2CO }</math>

它可以形成一系列的草酸根配合物，如Na<sub>4</sub>[Np(C<sub>2</sub>O<sub>4</sub>)<sub>4</sub>]·3H<sub>2</sub>O、K<sub>4</sub>[Np(C<sub>2</sub>O<sub>4</sub>)<sub>4</sub>]·4H<sub>2</sub>O等。<ref>Mefod'eva, M. P.; Gel'man, A. D. Neptunium(IV) oxalate compounds{{ru}}. ''Khim. Transuranovykh Oskolochnykh Elem. Akad. Nauk SSSR, Otd. Obshch. Tekh. Khim.'', 1967. 87-96. CODEN: 19YGAI.</ref>
==参考文献==
{{Reflist}}

{{镎化合物}}
{{草酸盐}}

[[Category:镎化合物]]
[[Category:草酸盐]]