Strontium oxide: Difference between revisions

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{{chembox
{{chembox
| Verifiedfields = changed
⚫
| verifiedrevid = 408473428
| Watchedfields = changed
⚫
| Reference = <ref name="hand">
⚫
| verifiedrevid = 432924813
| Name =
⚫
| Reference = <ref name="hand">
{{Cite book
{{Cite book
|last = Lide
| last = Lide
|first = David R.
| first = David R.
|year = 1998
| year = 1998
|title = Handbook of Chemistry and Physics
| title = Handbook of Chemistry and Physics
|edition = 87
| edition = 87
|publication-place = Boca Raton, FL
| location = Boca Raton, Florida
|publisher = CRC Press
| publisher = CRC Press
|isbn = 0849305942
| isbn = 0-8493-0594-2
|pages = 4–87}}</ref>
| pages = 4–87}}</ref>
| ImageFile = SrOpowder.jpg
| ImageFile = SrOpowder.jpg
| ImageFile2 = NaCl polyhedra.png
| ImageFile2 = Strontium-oxide-unit-cell-3D-SF.png
| ImageName = <span style="color:#C0C0C0; background-color:#C0C0C0;">__</span> Sr<sup>2+</sup>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#00FF00;background-color:#00FF00;">__</span> O<sup>2-</sup>
| ImageName = <span style="color:#C0C0C0; background-color:#C0C0C0;">__</span> Sr<sup>2+</sup>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#00FF00;background-color:#00FF00;">__</span> O<sup>2−</sup>
| IUPACName = Strontium oxide
| IUPACName = Strontium oxide
| OtherNames = Strontia
| OtherNames = Strontia
| SystematicName =
| Section1 = {{Chembox Identifiers
| Section1 = {{Chembox Identifiers
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo = 1314-11-0
| CASNo = 1314-11-0
| CASNo_Ref = {{cascite}}
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = 64RA22280P
| PubChem = 73975
| EINECS = 215-219-9
| InChI = 1S/O.Sr/q-2;+2
| SMILES = [O-2].[Sr+2]
}}
}}
| Section2 = {{Chembox Properties
| Section2 = {{Chembox Properties
| Formula = SrO
| Formula = SrO
| MolarMass = 103.62 g/mol
| MolarMass = 103.619 g/mol
| Appearance = colorless [[cubic crystal system|cubic]] crystals
| Appearance = colorless [[cubic crystal system|cubic]] crystals
| Density = 4.70 g/cm<sup>3</sup>
| Density = 4.70 g/cm<sup>3</sup>
| Solubility = reacts, forms [[strontium hydroxide|Sr(OH)<sub>2</sub>]]
| Solubility = reacts, forms [[strontium hydroxide|Sr(OH)<sub>2</sub>]]
| SolubleOther = miscible with [[caustic potash]] <br> slightly soluble in [[alcohol]] <br> insoluble in [[acetone]] and [[ether]]
| SolubleOther = miscible with [[potassium hydroxide]]<br>slightly soluble in [[ethanol|alcohol]]<br>insoluble in [[acetone]] and [[diethyl ether|ether]]
| MeltingPt = 2531°C
| MeltingPtC = 2531
| BoilingPtC = 3200
| BoilingPt = > 3000 °C (decomp)
| BoilingPt_notes = (decomposes)
| RefractIndex = 1.810 <ref>Pradyot Patnaik. ''Handbook of Inorganic Chemicals''. McGraw-Hill, 2002, ISBN 0070494398</ref>
| RefractIndex = 1.810 <ref>Pradyot Patnaik. ''Handbook of Inorganic Chemicals''. McGraw-Hill, 2002, {{ISBN|0-07-049439-8}}</ref>
| MagSus = &minus;35.0·10<sup>−6</sup> cm<sup>3</sup>/mol
}}
}}
| Section3 = {{Chembox Structure
| Section3 = {{Chembox Structure
| CrystalStruct = [[Halite]] (cubic), [[Pearson symbol|cF8]]
| CrystalStruct = [[Halite]] (cubic), [[Pearson symbol|cF8]]
| SpaceGroup = Fm{{overline|3}}m, No. 225
| SpaceGroup = Fm{{overline|3}}m, No. 225
| Coordination = Octahedral (Sr<sup>2+</sup>); octahedral (O<sup>2–</sup>)
| Coordination = Octahedral (Sr<sup>2+</sup>); octahedral (O<sup>2−</sup>)
| LattConst_a =
| LattConst_a =
}}
}}
| Section4 = {{Chembox Thermochemistry
| Section4 = {{Chembox Thermochemistry
| DeltaHf = -592.0 kJ·mol<sup>−1</sup>
| DeltaHf = -592.0 kJ·mol<sup>−1</sup>
| DeltaHc =
| DeltaHc =
| Entropy = 57.2 J·mol<sup>−1</sup>·K<sup>−1</sup>
| Entropy = 57.2 J·mol<sup>−1</sup>·K<sup>−1</sup>
| HeatCapacity = 44.3 J·mol<sup>−1</sup>·K<sup>−1</sup>
| HeatCapacity = 44.3 J·mol<sup>−1</sup>·K<sup>−1</sup>
}}
}}
| Section5 =
⚫
| Section7 = {{Chembox Hazards
| ExternalMSDS =
| Section6 =
⚫
| Section7 = {{Chembox Hazards
| EUIndex = Not listed
| EUClass =
| ExternalSDS =
| RPhrases =
| HPhrases =
| SPhrases =
| PPhrases =
| MainHazards =
| GHS_ref =
| NFPA-H =
| MainHazards =
| NFPA-F =
| NFPA-H =
| NFPA-R =
| NFPA-F =
| NFPA-O =
| NFPA-R =
| NFPA-S =
| FlashPt = Non-flammable
| FlashPt = Non-flammable
| LD50 =
| LD50 =
| PEL =
| PEL =
}}
}}
| Section8 = {{Chembox Related
| Section8 = {{Chembox Related
| OtherAnions = [[Strontium sulfide]]
| OtherAnions = [[Strontium sulfide]]
| OtherCations = [[Beryllium oxide]]<br/>[[Magnesium oxide]]<br/>[[Calcium oxide]]<br/>[[Barium oxide]]
| OtherCations = [[Beryllium oxide]]<br/>[[Magnesium oxide]]<br/>[[Calcium oxide]]<br/>[[Barium oxide]]
| OtherFunctn =
| OtherFunction =
| OtherFunction_label =
| Function =
| OtherCpds = [[Strontium hydroxide]]
| OtherCompounds = [[Strontium hydroxide]]
}}
}}
}}
}}
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==Uses==
==Uses==
About 8% by weight of [[television]] picture tube glass is strontium oxide, which has been the major use of strontium since 1970.<ref>{{cite web|url = http://minerals.usgs.gov/minerals/pubs/commodity/strontium/myb1-2007-stron.pdf|title = Mineral Yearbook 2007:Strontium|first1 = Joyce A.|last1 = Ober|first2 = Désirée E.|last2 = Polyak|publisher = United States Geological Survey|accessdate = 2009-09-14}}</ref> Color televisions and other devices containing color [[cathode ray tube]]s sold in the United States are required by law to use strontium in the faceplate to block [[X-ray]] emission (these X-ray emitting TV's are no longer in production). [[Lead oxide]] can be used in the neck and funnel, but causes discoloration when used in the faceplate.<ref>{{cite journal|doi = 10.1016/j.wasman.2005.11.017|pmid = 16427267|year = 2006|last1 = Méar|first1 = F|last2 = Yot|first2 = P|last3 = Cambon|first3 = M|last4 = Ribes|first4 = M|title = The characterization of waste cathode-ray tube glass.|volume = 26|issue = 12|pages = 1468–76|issn = 0956-053X|journal = Waste management}}</ref>
About 8% by weight of [[cathode ray tube]]s is strontium oxide, which has been the major use of strontium since 1970.<ref>{{cite web|url = http://minerals.usgs.gov/minerals/pubs/commodity/strontium/myb1-2007-stron.pdf|title = Mineral Yearbook 2007:Strontium|first1 = Joyce A.|last1 = Ober|first2 = Désirée E.|last2 = Polyak|publisher = United States Geological Survey|access-date = 2009-09-14}}</ref><ref>{{Cite book|url=https://books.google.com/books?id=G6c7AQAAMAAJ&dq=faceplate+glass+production+%2C+strontium%27s+major+end+use+since+the+early+1970s&pg=RA6-SA74-PA1|title=Minerals Yearbook|date=May 8, 2011|publisher=Bureau of Mines|isbn=9781411332270|via=Google Books}}</ref> Color televisions and other devices containing color cathode ray tubes sold in the United States are required by law to use strontium in the faceplate to block [[X-ray]] emission (these X-ray emitting TVs are no longer in production). [[Lead(II) oxide]] can be used in the neck and funnel, but causes discoloration when used in the faceplate.<ref>{{cite journal|doi = 10.1016/j.wasman.2005.11.017|pmid = 16427267|year = 2006|last1 = Méar|first1 = F|last2 = Yot|first2 = P|last3 = Cambon|first3 = M|last4 = Ribes|first4 = M|title = The characterization of waste cathode-ray tube glass.|volume = 26|issue = 12|pages = 1468–76|issn = 0956-053X|journal = Waste Management| bibcode=2006WaMan..26.1468M }}</ref>


==Reactions==
==Reactions==
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==External links==
==External links==
*[http://www.ceramic-materials.com/cermat/oxide/sro.html Hansen, Tony, "SrO (Strontium Oxide, Strontia)", ceramic-materials.com]
*[https://web.archive.org/web/20060909182921/http://ceramic-materials.com/cermat/oxide/sro.html Hansen, Tony, "SrO (Strontium Oxide, Strontia)", ceramic-materials.com]


{{Strontium compounds}}
{{Strontium compounds}}
{{Oxides}}

{{Authority control}}


[[Category:Strontium compounds]]
[[Category:Strontium compounds]]
[[Category:Oxides]]
[[Category:Oxides]]
[[Category:Common oxide glass components]]
[[Category:Rock salt crystal structure]]


{{inorganic-compound-stub}}

[[ar:أكسيد السترونشيوم]]
[[cs:Oxid strontnatý]]
[[de:Strontiumoxid]]
[[nl:Strontiumoxide]]
[[ja:酸化ストロンチウム]]
[[pt:Óxido de estrôncio]]
[[ru:Оксид стронция]]
[[zh:氧化鍶]]
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