:Strontium oxide

{{chembox

| Verifiedfields = changed

| Watchedfields = changed

| verifiedrevid = 432924813

| Name =

| Reference =

{{Cite book

| last = Lide

| first = David R.

| year = 1998

| title = Handbook of Chemistry and Physics

| edition = 87

| location = Boca Raton, Florida

| publisher = CRC Press

| isbn = 0-8493-0594-2

| pages = 4–87}}

| ImageFile = SrOpowder.jpg

| ImageFile2 = Strontium-oxide-unit-cell-3D-SF.png

| ImageName = __ Sr²⁺     __ O²⁻

| IUPACName = Strontium oxide

| OtherNames = Strontia

| SystematicName =

| Section1 = {{Chembox Identifiers

| CASNo_Ref = {{cascite|correct|CAS}}

| CASNo = 1314-11-0

| 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

| Formula = SrO

| MolarMass = 103.619 g/mol

| Appearance = colorless cubic crystals

| Density = 4.70 g/cm³

| Solubility = reacts, forms Sr(OH)₂

| SolubleOther = miscible with potassium hydroxide
slightly soluble in alcohol
insoluble in acetone and ether

| MeltingPtC = 2531

| BoilingPtC = 3200

| BoilingPt_notes = (decomposes)

| RefractIndex = 1.810 Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, {{ISBN|0-07-049439-8}}

| MagSus = −35.0·10⁻⁶ cm³/mol

}}

| Section3 = {{Chembox Structure

| CrystalStruct = Halite (cubic), cF8

| SpaceGroup = Fm{{overline|3}}m, No. 225

| Coordination = Octahedral (Sr²⁺); octahedral (O²⁻)

| LattConst_a =

}}

| Section4 = {{Chembox Thermochemistry

| DeltaHf = −592.0 kJ·mol⁻¹

| DeltaHc =

| Entropy = 57.2 J·mol⁻¹·K⁻¹

| HeatCapacity = 44.3 J·mol⁻¹·K⁻¹

}}

| Section5 =

| Section6 =

| Section7 = {{Chembox Hazards

| ExternalSDS =

| HPhrases =

| PPhrases =

| GHS_ref =

| MainHazards =

| NFPA-H =

| NFPA-F =

| NFPA-R =

| NFPA-S =

| FlashPt = Non-flammable

| LD50 =

| PEL =

}}

| Section8 = {{Chembox Related

| OtherAnions = Strontium sulfide

| OtherCations = Beryllium oxide
Magnesium oxide
Calcium oxide
Barium oxide

| OtherFunction =

| OtherFunction_label =

| OtherCompounds = Strontium hydroxide

}}

}}

Strontium oxide or strontia, SrO, is formed when strontium reacts with oxygen. Burning strontium in air results in a mixture of strontium oxide and strontium nitride. It also forms from the decomposition of strontium carbonate SrCO₃. It is a strongly basic oxide.