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Revision as of 17:11, 12 February 2011 editLuckas-bot (talk | contribs)929,662 editsm r2.7.1) (robot Adding: fi:Etyylitertiääributyylieetteri← Previous edit		Latest revision as of 20:33, 9 April 2022 edit undoPancho507 (talk | contribs)Extended confirmed users22,649 editsNo edit summaryTags: Mobile edit Mobile web edit Advanced mobile edit
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			{{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}}		{{DISPLAYTITLE:Ethyl ''tert''-butyl ether}}
	{{chembox		{{chembox
			| Watchedfields = changed
	| verifiedrevid = 402115048		| verifiedrevid = 413513038
	| Name=Ethyl ''tert''-butyl ether		| Name =Ethyl ''tert''-butyl ether
	| Reference = <ref>''Merck Index'', 11th Edition, '''3732'''.</ref>		| Reference = <ref>''Merck Index'', 11th Edition, '''3732'''.</ref>
	| ImageFile = Ethyl-tertiary-butyl-ether-chemical.png		| ImageFile = Ethyl tert-butyl ether.svg
	| ImageSize = 250px		| ImageSize = 250px
	| ImageFile1 = Ethyl-tert-butyl-ether-3D-balls.png		| ImageFile1 = Ethyl-tert-butyl-ether-3D-balls.png
	| ImageSize1 = 160px		| ImageSize1 = 160px
	| ImageName1 = Ball-and-stick model		| ImageName1 = Ball-and-stick model
	| IUPACName = 2-Ethoxy-2-methyl-propane		| PIN = 2-Ethoxy-2-methylpropane
	| OtherNames = Ethyl ''tert''-butyl ether<br>Ethyl tertiary butyl ether<br>Ethyl ''tert''-butyl oxide<br>''tert''-Butyl ethyl ether<br>Ethyl ''t''-butyl ether		| OtherNames = Ethyl ''tert''-butyl ether<br>Ethyl tertiary butyl ether<br>Ethyl ''tert''-butyl oxide<br>''tert''-Butyl ethyl ether<br>Ethyl ''t''-butyl ether
	| Section1 = {{Chembox Identifiers		|Section1={{Chembox Identifiers
	| Abbreviations = ETBE		| Abbreviations = ETBE
	| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}		| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
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	| CASNo_Ref = {{cascite|correct|CAS}}		| CASNo_Ref = {{cascite|correct|CAS}}
	| CASNo = 637-92-3		| CASNo = 637-92-3
			| UNII_Ref = {{fdacite|correct|FDA}}
			| UNII = 3R9B16WR19
	| EINECS = 211-309-7		| EINECS = 211-309-7
	| PubChem = 12512		| PubChem = 12512
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	| RTECS =KN4730200		| RTECS =KN4730200
	| MeSHName =		| MeSHName =
	| ChEBI =		| ChEBI = 141564
	| KEGG_Ref = {{keggcite|correct|kegg}}		| KEGG_Ref = {{keggcite|correct|kegg}}
	| KEGG =		| KEGG =
			}}
	| ATCCode_prefix =
		⚫	|Section2={{Chembox Properties
	| ATCCode_suffix =
		⚫	| C=6 | H=14 | O=1
	| ATC_Supplemental =}}
⚫	| Section2 = {{Chembox Properties
⚫	| C=6|H=14|O=1
	| MolarMass =102.18		| MolarMass =102.18
	| Appearance =Clear colorless liquid		| Appearance =Clear colorless liquid
	| Density = 0.7364 g/cm<sup>3</sup>		| Density = 0.7364 g/cm<sup>3</sup>
	| MeltingPtC = -94		| MeltingPtC = -94
	| Melting_notes =		| MeltingPt_notes =
	| BoilingPt = 69-71 °C		| BoilingPtC = 69 to 71
	| Boiling_notes =		| BoilingPt_notes =
	| Solubility = 1.2 g/100 g		| Solubility = 1.2 g/100 g
	| SolubleOther =		| SolubleOther =
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	| pKa =		| pKa =
	| pKb = }}		| pKb = }}
	| Section7 = {{Chembox Hazards		|Section7={{Chembox Hazards
	| EUClass =
	| EUIndex =
	| MainHazards =		| MainHazards =
	| NFPA-H =		| NFPA-H =
	| NFPA-F =		| NFPA-F =
	| NFPA-R =		| NFPA-R =
	| NFPA-O =		| NFPA-S =
	| RPhrases = {{R11}} {{R20}}		| GHSPictograms = {{GHS02}}{{GHS07}}
			| GHSSignalWord = Danger
	| SPhrases = {{S16}}
			| HPhrases = {{H-phrases|224|225|315|319|335|336}}
	| RSPhrases =
			| 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}}
	| FlashPt = -19 °C
	| Autoignition =		| FlashPtC = -19
			| AutoignitionPtC =
	| ExploLimits =		| ExploLimits =
	| PEL = }}		| PEL =
			}}
	}}		}}
	'''Ethyl ''tert''-butyl ether''' ('''ETBE''') is commonly used as an ] ] in the production of ] from ]. ETBE offers equal or greater air quality benefits than ], while being technically and logistically less challenging. Unlike ethanol, ETBE does not induce evaporation of gasoline, which is one of the causes of ], and does not ] from the atmosphere.		'''Ethyl ''tertiary''-butyl ether''' ('''ETBE'''), also known as '''ethyl ''tert''-butyl ether''', is commonly used as an ] ] in the production of ] from ]. ETBE offers equal or greater air quality benefits than ], while being technically and logistically less challenging. Unlike ethanol, ETBE does not induce evaporation of gasoline, which is one of the causes of ], and does not ] from the atmosphere.
	== Synthesis ==		== Production ==
			Ethyl tert-butyl ether is manufactured industrially by the acidic etherification of ] with ] at a temperature of 30–110&nbsp;°C and a pressure of 0,8–1,3 MPa. The reaction is carried out with an acidic ] as a ].<ref name=production>{{cite web |last1=Grömping |first1=Matthias |last2=Höper |first2=Frank |last3=Leistner |first3=Jörg |last4=Nierlich |first4=Franz |last5=Peters |first5=Udo |last6=Praefke |first6=Jochen |last7=Rix |first7=Armin |last8=Röttger |first8=Dirk |last9=Santiago Fernandez |first9=Silvia |title=Preparing ethyl tertiary butylether from hydrocarbon mixture, useful as fuel additive, comprises reacting isobutene with ethanol, separating the hydrocarbon, reacting separated isobutene with ethanol and separating unconverted hydrocarbon |url=https://patents.google.com/patent/DE102005062722A1/en?q=verfahren+zur+herstellung+von&q=etbe&oq=verfahren+zur+herstellung+von+etbe |website=Google Patents |publisher=Evonik Degussa GmbH |access-date=5 March 2019 |ref=production method}}</ref>
	It is synthesized by mixing ] and ] and reacting them with heat over a ].
			]
			Suitable reactors are fixed-bed reactors such as tube bundle or circulation reactors in which the reflux can be cooled optionally.<ref name="production" />
	]
	], produced by fermentation and distillation, is more expensive than ], which is derived from natural gas. Therefore, ], made from methanol is cheaper than ETBE, made from ethanol.		], produced by fermentation and distillation, is more expensive than ], which is derived from natural gas. Therefore, ], made from methanol is cheaper than ETBE, made from ethanol.
	== See also ==		== See also ==
	*]		*] (MTBE)
	*]		*] (TAME)
			*] (TEL)
			*]
	==References==		==References==
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	==External links==		==External links==
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