What is Ethylene oxide?
{{chembox | Watchedfields = changed | verifiedrevid = 446701253 | ImageFileL1 = Ethylene oxide.svg | ImageSizeL1 = 100 px | ImageFileR1 = Ethylene-oxide-from-xtal-3D-balls.png | ImageSizeR1 = 150 px | PIN = Oxirane | SystematicName = Epoxyethane<br />Oxacyclopropane | OtherNames = Ethylene oxide<br />Dimethylene oxide<br />1,2-Epoxyethane<br />[3]-crown-1<br />Epoxide |Section1={{Chembox Identifiers | Abbreviations = EO, EtO | ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} | ChemSpiderID = 6114 | UNII_Ref = {{fdacite|correct|FDA}} | UNII = JJH7GNN18P | InChIKey = IAYPIBMASNFSPL-UHFFFAOYAX | StdInChI_Ref = {{stdinchicite|correct|chemspider}} | StdInChI = 1S/C2H4O/c1-2-3-1/h1-2H2 | StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} | StdInChIKey = IAYPIBMASNFSPL-UHFFFAOYSA-N | CASNo = 75-21-8 | CASNo_Ref = {{cascite|correct|CAS}} | EINECS = 200-849-9 | PubChem = 6354 | SMILES = C1CO1 | InChI = 1/C2H4O/c1-2-3-1/h1-2H2 | RTECS = KX2450000 | MeSHName = Ethylene+Oxide | ChEBI_Ref = {{ebicite|correct|EBI}} | ChEBI = 27561 | KEGG_Ref = {{keggcite|correct|kegg}} | KEGG = D03474 }} |Section2={{Chembox Properties | Formula = C<sub>2</sub>H<sub>4</sub>O | MolarMass = 44.052{{nbsp}}g·mol<sup>−1</sup><ref name=r3430>[[#Haynes|Haynes]], p. 3.430</ref> | Appearance = Colorless gas | Odor = Ether-like | Density = 0.8821{{nbsp}}g·cm<sup>−3</sup><ref name=r3430/> | Dipole = 1.94{{nbsp}}D | MeltingPtC = −112.46 | MeltingPt_ref =<ref name=r3430/> | BoilingPtC = 10.4 | BoilingPt_ref =<ref name=r3430/> | Solubility = Miscible | SolubleOther = | Solvent = | LogP = | VaporPressure = 1.46{{nbsp}}atm (20{{nbsp}}°C)<ref name=PGCH/> | HenryConstant = | AtmosphericOHRateConstant = | pKa = | pKb = | RefractIndex = 1.3597 (589{{nbsp}}nm)<ref name=r3430/> | MagSus = −30.5·10<sup>−6</sup>{{nbsp}}cm<sup>3</sup>/mol<ref>[[#Haynes|Haynes]], p. 3.576</ref> }} |Section3={{Chembox Structure | CrystalStruct = | Coordination = | MolShape =}} |Section4={{Chembox Thermochemistry | DeltaHf = −52.6{{nbsp}}kJ·mol<sup>−1</sup><ref name=r522>[[#Hay