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Revision as of 11:29, 7 November 2011 editBeetstra (talk | contribs)Edit filter managers, Administrators172,031 edits Script assisted update of identifiers for the Chem/Drugbox validation project (updated: 'StdInChI', 'StdInChIKey').← Previous edit Latest revision as of 10:30, 3 November 2024 edit undoGraeme Bartlett (talk | contribs)Administrators249,686 edits CAS 
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{{Chembox {{Chembox
|Verifiedfields = changed
⚫ | Name = Curium hydroxide
|Watchedfields = changed
| ImageFile = Cm hydroxide.jpg
|verifiedrevid = 459442017
| ImageFile2 =
| IUPACName = Curium hydroxide |Name = Curium hydroxide
|ImageFile = UCl3 without caption.png
⚫ | SystematicName = Curium(3+) oxidanide
|ImageName = Curium(III) hydroxide<br>Curium hydroxide
⚫ | Section1 = {{Chembox Identifiers
⚫ |IUPACName = Curium hydroxide
⚫ | SMILES = ...
⚫ |SystematicName = Curium(3+) oxidanide
⚫ | StdInChI = <!-- blanked - oldvalue: 1S/Cm.3H2O/h;3*1H2/q+3;;;/p-3 -->
⚫ |Section1={{Chembox Identifiers
⚫ | StdInChI_Ref = {{stdinchicite|correct|??}}
|CASNo = 49848-26-2
⚫ | StdInChIKey = <!-- blanked - oldvalue: ZOFUDUXHUCRFKX-UHFFFAOYSA-K -->
| StdInChIKey_Ref = {{stdinchicite|correct|??}}}} |CASNo_Ref = {{Cascite|changed|EPA}}
|PubChem = 14648287
⚫ | Section2 = {{Chembox Properties
⚫ |SMILES = ...
| H = 3
⚫ |StdInChI = 1S/Cm.3H2O/h;3*1H2/q+3;;;/p-3
| Cm = 1
⚫ |StdInChI_Ref = {{stdinchicite|correct|EPA}}
| O = 3
⚫ |StdInChIKey = ZOFUDUXHUCRFKX-UHFFFAOYSA-K
| ExactMass = 298.008 g mol<sup>-1</sup>}}
|StdInChIKey_Ref = {{stdinchicite|correct|EPA}}
}} }}
⚫ |Section2={{Chembox Properties
⚫ '''Curium hydroxide''' is a ] compound first discovered in measurable quantities in 1947. It is composed of a single ] atom, and three ] groups. It was the first curium compound ever isolated.<ref>{{cite book|last1=Seaborg|first1=Glenn T.|title=Man-Made Transuranium Elements|publisher=Prentice-Hall|year=1963}}</ref>
|H=3 | Cm=1 | O=3
|Appearance = colorless or pale yellow solid
|Solubility = insoluble
}}
|Section3={{Chembox Structure
|CrystalStruct = hexagonal, UCl<sub>3</sub> structure<ref name=CRC>{{cite book |last1=Macintyre |first1=Jane E. |title=Dictionary of Inorganic Compounds |publisher=CRC Press |isbn=978-0-412-30120-9 |year=1992 |page=3046 |url=https://books.google.com/books?id=9eJvoNCSCRMC&pg=PA3046}}</ref>
|SpaceGroup = P6<sub>3</sub>/m, No. 176<ref name=Krivovichev>{{cite book |last1=Krivovichev |first1=Sergey |last2=Burns |first2=Peter |last3=Tananaev |first3=Ivan |title=Structural Chemistry of Inorganic Actinide Compounds |year=2006 |publisher=Elsevier |page=68 |isbn=978-0-08-046791-7 |url=https://books.google.com/books?id=mV-phntexBQC&pg=PA68}}</ref>
|LattConst_a = 639,1&nbsp;pm<ref name=Krivovichev/>
|LattConst_c = 371,2&nbsp;pm<ref name=Krivovichev/>
}}
}}
]
⚫ '''Curium hydroxide''' {{chem2|Cm(OH)3}} is a ] compound first discovered in measurable quantities in 1947. It is composed of a single ] atom and three ]s. It was the first curium compound ever isolated.<ref>{{cite book |last1=Seaborg |first1=Glenn T. |title=Man-Made Transuranium Elements |publisher=Prentice-Hall |year=1963}}</ref><ref>{{cite web |title=WebElements Periodic Table: Curium |publisher=webelements.com |url=https://www.webelements.com/curium/ |access-date=January 20, 2019}}</ref>

Curium hydroxide is an anhydrous colorless<ref name=Krivovichev/> or light-yellow<ref name=Koch>{{cite book |title=Transurane Teil C: Die Verbindungen |last1=Koch |first1=Günter |year=1972 |page=35 |series=Gmelins Handbuch |publisher=Springer-Verlag |isbn=978-3-662-11547-3 |url=https://books.google.com/books?id=WCi2BgAAQBAJ&pg=PA35 |language=de}}</ref> amorphous gelatinous solid that is insoluble in water.<ref name=CRC/>

Due to self-irradiation, the crystal structure of {{chem2|^{244}Cm(OH)3}} decomposes{{clarify|date=May 2023}} within one day ({{chem2|^{244}Cm}} has a half-life of 18.11 years); for {{chem2|^{241}Am(OH)3|link=americium(III) hydroxide}} the same process takes 4 to 6 months ({{chem2|^{241}Am}} has a half-life of 432.2 years).<ref name=Krivovichev/>


==See also== ==See also==
*] * ]
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==References== ==References==
{{Reflist}}
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{{Curium compounds}} {{Curium compounds}}
{{Hydroxides}}

⚫ {{Inorganic-compound-stub}}
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] ]
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⚫ {{Inorganic-compound-stub}}

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