Lihat sumber bagi Renium(IV) oksida

{{Chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 437313373
| ImageFile = Rutile-unit-cell-3D-balls.png
| ImageCaption = {{Color box|#BFC3C6|border=darkgray}} [[Renium|Re]] {{Color box|#ee2010|border=darkgray}} [[Oksigen|O]]
| IUPACName = Renium(IV) oksida
| OtherNames = Renium dioksida
|Section1={{Chembox Identifiers
| Abbreviations = 
| CASNo_Ref = {{cascite|correct|??}}
| CASNo = 12036-09-8
| EINECS = 234-839-0
| PubChem = 82847
| InChI = 1S/2O.Re
| RTECS =
| MeSHName =
| ChEBI =
| KEGG_Ref = {{keggcite|correct|kegg}}
| KEGG = 
| SMILES = O=[Re]=O
}}
|Section2={{Chembox Properties
| Formula = ReO<sub>2</sub>
| MolarMass = 218.206 g/mol
| Appearance = Hablur ortorombus kelabu
| Density = 11.4 g/cm<sup>3</sup><ref name="chem">{{cite book | last = Lide| first = David R.| year = 1998| title = Handbook of Chemistry and Physics| edition = 87| publisher = CRC Press| isbn = 0-8493-0594-2  | page = 484| url = https://books.google.com/books?id=lFjg0L-uOxoC&pg=PT869&dq=%22Rhenium(IV)+oxide%22#PPT869,M1| accessdate = 2008-06-05}}</ref>
| MeltingPt = Terurai pada 1000&nbsp;°C<ref name="comp">{{cite book | last = Perry| first = Dale L.| last2 = Phillips | first2 = Sidney L.| year = 1995| title = Handbook of Inorganic Compounds| publication-place = San Diego| publisher = CRC Press| isbn = 0-8493-8671-3  | page = 328| url = https://books.google.com/books?id=0fT4wfhF1AsC&pg=PA328&dq=%22Rhenium(IV)+oxide%22| accessdate = 2008-06-05}}</ref>
| BoilingPt = 
| Solubility = Tidak larut
| SolubleOther = Tidak larut
| Solvent = alkali
| pKa = 
| pKb = 
| MagSus = +44.0·10<sup>−6</sup> cm<sup>3</sup>/mol
 }}
|Section3={{Chembox Structure
| CrystalStruct = Ortorombus, oP12
| SpaceGroup = Pbcn, No. 60
 }}
|Section7={{Chembox Hazards
| ExternalSDS = [https://www.sigmaaldrich.com/catalog/search/ProductDetail/ALDRICH/342254 Aldrich MSDS]
| EUClass = 
| MainHazards = 
| NFPA-H = 1
| NFPA-F = 0
| NFPA-R = 0
| NFPA-S =
| RPhrases = 
| SPhrases = 
| RSPhrases =
| FlashPt = 
| AutoignitionPt = 
| ExploLimits = 
| PEL = 
 }}
|Section8={{Chembox Related
| OtherAnions = [[Renium(VII) oksida]]<br />[[Renium(III) oksida]]<br />[[Renium(III) klorida]]
| OtherCations = [[Mangan(IV) oksida]]<br />[[Teknetium(IV) oksida]]
 }}
}}

'''Renium(IV) oksida''' atau '''renium dioksida''' ialah sebatian kimia [[renium]] dengan formula kimia ReO<sub>2</sub>. Sebatian ini berwarna kelabu kehitaman dan digunakan sebagai [[mangkin]] dalam persekitaran makmal.

== Penghasilan ==

Renium(IV) oksida boleh dihasilkan melalui tindak balas antara [[renium(VII) oksida]] dan logam renium.<ref>G. Glemser "Rhenium (IV) Oxide" Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1. p. 1480.</ref>

<ce>2Re2O7 + 3Re -> 7ReO2</ce>

Selain itu, renium(IV) oksida boleh dihasilkan melalui pemanasan [[ammonium perenat]], NH<sub>4</sub>ReO<sub>4</sub> dalam persekitaran udara [[nitrogen]] atau [[argon]] kering serta dalam vakum.<ref>{{cite book |last=Brauer|first=Georg|title=Handbuch der Präparativen Anorganischen Chemie|volume=III|year=1981|publisher=Ferdinand Enke|location=Stuttgart|language=Jerman|isbn=3-432-87823-0|pages=1617|chapter=3., umgearbeitete Auflage}}</ref>

<ce>NH4ReO4 -> 2ReO2 + N2 + H2O</ce>

== Tindak balas ==

Dalam suhu yang tinggi, sebatian ini boleh terurai semula kepada renium(VII) oksida dan logam renium.

<ce>7ReO2 -> 2Re2O7 + 3Re </ce>

Renium(IV) oksida bertindak balas dengan [[natrium hidroksida]] lebur untuk menghasilkan natrium renat.<ref>G. Glemser "Sodium Rhenate (IV)" Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1. p. 1483.</ref>

<ce>2 NaOH  +   ReO2   ->  Na2ReO3  +  H2O</ce>

== Rujukan ==
{{Reflist}}

{{Sebatian renium}}
{{Oksida}}

[[Kategori:Sebatian renium]]
[[Kategori:Oksida]]