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{{chembox |
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{{chembox |
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| verifiedrevid = 429190694 |
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| ImageFile = BaO2structure.jpg |
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| ImageFile = BaO2structure.jpg |
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| ImageSize = |
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| IUPACName = |
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| IUPACName = |
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| OtherNames = |
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| OtherNames = |
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| Section1 = {{Chembox Identifiers |
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|Section1={{Chembox Identifiers |
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| CASNo_Ref = {{cascite|correct|??}} |
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| CASNo = 1314-18-7 |
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| PubChem = |
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| CASNo = 1314-18-7 |
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| UNII_Ref = {{fdacite|correct|FDA}} |
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| SMILES = |
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| UNII = E0830P344P |
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| PubChem = 14807 |
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| EINECS = 215-224-6 |
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| InChI = 1S/O2.Sr/c1-2;/q-2;+2 |
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| SMILES = . |
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| Section2 = {{Chembox Properties |
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|Section2={{Chembox Properties |
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| Formula = |
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| Formula = SrO<sub>2</sub> |
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| MolarMass = 119.619 g/mol |
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| MolarMass = 119.619 g/mol |
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| Appearance = white powder |
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| Appearance = white powder |
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| Odor = odorless |
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| Density = 4.56 g/cm<sup>3</sup> |
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| Density = 4.56 g/cm<sup>3</sup> (anhydrous) 1.91 g/cm<sup>3</sup> (octahydrate) |
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| MeltingPt = 215°C |
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| MeltingPtC = 215 |
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| Melting_notes = decomposes |
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| MeltingPt_notes = (decomposes)<ref>{{cite journal|doi=10.1111/j.1551-2916.2012.05452.x|title=Accommodation of Excess Oxygen in Group II Monoxides|journal=Journal of the American Ceramic Society|volume=96|pages=308–311|year=2013|last1=Middleburgh|first1=Simon C.|last2=Lagerlof|first2=Karl Peter D.|last3=Grimes|first3=Robin W.}}</ref> |
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| BoilingPt = |
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| Solubility = |
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| BoilingPt = |
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| Solubility = slightly soluble |
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| SolubleOther = very soluble in ], ] <br> insoluble in ] |
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| Section3 = {{Chembox Structure |
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|Section3={{Chembox Structure |
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| CrystalStruct = Tetragonal <ref>{{cite journal| doi = 10.1023/A:1015105922260| year = 2002| author = Massalimov, I. A.| journal = Inorganic Materials| volume = 38| issue = 4| pages = 363| last2 = Kireeva| first2 = M. S.| last3 = Sangalov| first3 = Yu. A.}}</ref> |
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| CrystalStruct = Tetragonal <ref>{{cite journal|doi=10.1023/A:1015105922260|year=2002|title=Structure and Properties of Mechanically Activated Barium Peroxide|last1=Massalimov|first1=I. A.|journal=Inorganic Materials|volume=38|issue=4|pages=363–366|last2=Kireeva|first2=M. S.|last3=Sangalov|first3=Yu. A.|s2cid=91881752 }}</ref> |
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| SpaceGroup = D<sup>17</sup><sub>4h</sub>, I4/mmm, ] |
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| SpaceGroup = D<sup>17</sup><sub>4h</sub>, I4/mmm, ] |
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| Coordination = 6 |
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| Coordination = 6 |
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| Section7 = {{Chembox Hazards |
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|Section7={{Chembox Hazards |
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| ExternalSDS = |
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| FlashPt = |
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| Autoignition = |
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| FlashPt = |
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| AutoignitionPt = |
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| GHSPictograms = {{GHS03}}{{GHS05}}{{GHS07}}<ref name=sds>{{cite web|title = Strontium Peroxide|url = https://www.americanelements.com/strontium-peroxide-1314-18-7|publisher = ]|accessdate = March 7, 2019}}</ref> |
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| GHSSignalWord = Danger |
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| HPhrases = {{H-phrases|302|312|317|331|350}} |
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| PPhrases = {{P-phrases|220|261|280|305+351+338}} |
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'''Strontium peroxide''' is an ] with the formula ] ] that exists in both anhydrous and octahydrate form, both of which are white solids. The anhydrous form adopts a structure similar to that of ].<ref>Bernal, J. D.; D'yatlova, E.; Kasarnovskii, I.; Raikhstein, S. I.; Ward, A. G. "The structure of strontium and barium peroxides" Zeitschrift für Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (1935), 92, 344-54.</ref><ref>Natta, G. "Structure of hydroxides and hydrates. IV. Octahydrated strontium peroxide" Gazzetta Chimica Italiana (1932), 62, 444-56.</ref> |
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'''Strontium peroxide''' (]]<sub>2</sub>) is a whitish ], a ] of ]. It is an ] used for ]ing. It is used in some ]s as an oxidizer and a vivid red ]. Its ] is {{CASREF|CAS=1314-18-7}}. |
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==Uses== |
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It is an ] used for ]ing. It is used in some ]s as an oxidizer and a vivid red ]. It can also be used as an ] and in tracer munitions.{{cn|date=September 2023}} |
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==Production== |
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Strontium peroxide is produced by passing oxygen over heated ]. Upon heating in the absence of O<sub>2</sub>, it degrades to SrO and O<sub>2</sub>. It is more thermally labile than BaO<sub>2</sub>.<ref>{{cite journal|doi=10.1111/j.1551-2916.2012.05452.x|title=Accommodation of Excess Oxygen in Group II Monoxides|journal=Journal of the American Ceramic Society|volume=96|pages=308–311|year=2013|last1=Middleburgh|first1=Simon C.|last2=Lagerlof|first2=Karl Peter D.|last3=Grimes|first3=Robin W.}}</ref><ref>Bauschlicher, Charles W. Jr.; Partridge, Harry; Sodupe, Mariona; Langhoff, Stephen R. "Theoretical study of the alkaline-earth metal superoxides BeO<sub>2</sub> through SrO<sub>2</sub>" Journal of Physical Chemistry 1992, volume 96, pp. 9259-64. {{doi|10.1021/j100202a036}}</ref> |
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==References== |
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==References== |
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{{Strontium compounds}} |
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{{Strontium compounds}} |
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{{Authority control}} |
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{{inorganic-compound-stub}} |
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