Ethyl tert-butyl ether

{{Short description|Oxygenate gasoline additive in the production of gasoline from crude oil}}

{{Use American English|date=March 2021}}

{{Use dmy dates|date=March 2021}}

{{More citations needed|date=November 2019}}

{{DISPLAYTITLE:Ethyl tert-butyl ether}}

{{chembox

| Watchedfields = changed

| verifiedrevid = 413513038

| Name =Ethyl tert-butyl ether

| Reference = Merck Index, 11th Edition, 3732.

| ImageFile = Ethyl tert-butyl ether.svg

| ImageSize = 250px

| ImageFile1 = Ethyl-tert-butyl-ether-3D-balls.png

| ImageSize1 = 160px

| ImageName1 = Ball-and-stick model

| PIN = 2-Ethoxy-2-methylpropane

| OtherNames = Ethyl tert-butyl ether
Ethyl tertiary butyl ether
Ethyl tert-butyl oxide
tert-Butyl ethyl ether
Ethyl t-butyl ether

|Section1={{Chembox Identifiers

| Abbreviations = ETBE

| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}

| ChemSpiderID = 11996

| InChIKey = NUMQCACRALPSHD-UHFFFAOYAB

| StdInChI_Ref = {{stdinchicite|correct|chemspider}}

| StdInChI = 1S/C6H14O/c1-5-7-6(2,3)4/h5H2,1-4H3

| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}

| StdInChIKey = NUMQCACRALPSHD-UHFFFAOYSA-N

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

| CASNo = 637-92-3

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = 3R9B16WR19

| EINECS = 211-309-7

| PubChem = 12512

| SMILES = O(C(C)(C)C)CC

| InChI = 1/C6H14O/c1-5-7-6(2,3)4/h5H2,1-4H3

| RTECS =KN4730200

| MeSHName =

| ChEBI = 141564

| KEGG_Ref = {{keggcite|correct|kegg}}

| KEGG =

}}

|Section2={{Chembox Properties

| C=6 | H=14 | O=1

| MolarMass =102.18

| Appearance =Clear colorless liquid

| Density = 0.7364 g/cm³

| MeltingPtC = -94

| MeltingPt_notes =

| BoilingPtC = 69 to 71

| BoilingPt_notes =

| Solubility = 1.2 g/100 g

| SolubleOther =

| Solvent =

| pKa =

| pKb = }}

|Section7={{Chembox Hazards

| MainHazards =

| NFPA-H =

| NFPA-F =

| NFPA-R =

| NFPA-S =

| GHSPictograms = {{GHS02}}{{GHS07}}

| GHSSignalWord = Danger

| HPhrases = {{H-phrases|224|225|315|319|335|336}}

| PPhrases = {{P-phrases|210|233|240|241|242|243|261|264|271|280|302+352|303+361+353|304+340|305+351+338|312|321|332+313|337+313|362|370+378|403+233|403+235|405|501}}

| FlashPtC = -19

| AutoignitionPtC =

| ExploLimits =

| PEL =

}}

}}

Ethyl tertiary-butyl ether (ETBE), also known as ethyl tert-butyl ether, is commonly used as an oxygenate gasoline additive in the production of gasoline from crude oil. ETBE offers equal or greater air quality benefits than ethanol, while being technically and logistically less challenging. Unlike ethanol, ETBE does not induce evaporation of gasoline, which is one of the causes of smog, and does not absorb moisture from the atmosphere.