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2-Ethoxy-2-methylpropan Produkt Beschreibung

tert-Butyl ethyl ether Struktur
637-92-3
CAS-Nr.
637-92-3
Bezeichnung:
2-Ethoxy-2-methylpropan
Englisch Name:
tert-Butyl ethyl ether
Synonyma:
ETBE;tert-C4H9OC2H5;Ethyl-tert-but;T-BUTYLETHYL ETHER;ert-Butylethylether;ethyltert-butyloxide;tert-Butyl ethyl eth;ether,tert-butylethyl;TERT-BUTYL ETHYL ETHER;ETHYL-TERT-BUTYL ETHER
CBNumber:
CB1689477
Summenformel:
C6H14O
Molgewicht:
102.17
MOL-Datei:
637-92-3.mol

2-Ethoxy-2-methylpropan Eigenschaften

Schmelzpunkt:
−97 °C(lit.)
Siedepunkt:
72-73 °C(lit.)
Dichte
0.742 g/mL at 25 °C(lit.)
Dampfdruck
155 mm Hg ( 25 °C)
Brechungsindex
n20/D 1.375(lit.)
Flammpunkt:
-19 °C
storage temp. 
Store below +30°C.
Löslichkeit
water: soluble1.2 g/100g at 20°C(lit.)
Aggregatzustand
Powder/Solid
Farbe
White
Explosionsgrenze
1.23-7.7%(V)
Wasserlöslichkeit
Miscible with alcohol, ethyl ether. Slightly miscible with water.
Merck 
14,3774
BRN 
1731469
Stabilität:
Stable, but may react with air to form peroxides. Once opened, store under an inert atmosphere and test for the presence of peroxides before use. Highly flammable. Incompatible with strong oxidizing agents.
InChIKey
NUMQCACRALPSHD-UHFFFAOYSA-N
CAS Datenbank
637-92-3(CAS DataBase Reference)
EPA chemische Informationen
Ethyl tert-butyl ether (637-92-3)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher F,Xi
R-Sätze: 11-36/38-67
S-Sätze: 16-26
RIDADR  UN 1179 3/PG 2
WGK Germany  1
RTECS-Nr. KN4730200
23
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29091990
Giftige Stoffe Daten 637-92-3(Hazardous Substances Data)
Bildanzeige (GHS)
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H225 Flüssigkeit und Dampf leicht entzündbar. Entzündbare Flüssigkeiten Kategorie 2 Achtung P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H315 Verursacht Hautreizungen. Hautreizung Kategorie 2 Warnung P264, P280, P302+P352, P321,P332+P313, P362
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung P264, P280, P305+P351+P338,P337+P313P
H331 Giftig bei Einatmen. Akute Toxizität inhalativ Kategorie 3 Achtung P261, P271, P304+P340, P311, P321,P403+P233, P405, P501
H335 Kann die Atemwege reizen. Spezifische Zielorgan-Toxizität (einmalige Exposition) Kategorie 3 (Atemwegsreizung) Warnung
H336 Kann Schläfrigkeit und Benommenheit verursachen. Spezifische Zielorgan-Toxizität (einmalige Exposition) Kategorie 3 (Schläfrigkeit und Benommenheit) Warnung P261, P271, P304+P340, P312,P403+P233, P405, P501
Sicherheit
P210 Von Hitze, heißen Oberflächen, Funken, offenen Flammen und anderen Zündquellenarten fernhalten. Nicht rauchen.
P233 Behälter dicht verschlossen halten.
P240 Behälter und zu befüllende Anlage erden.
P261 Einatmen von Staub vermeiden.
P264 Nach Gebrauch gründlich waschen.
P264 Nach Gebrauch gründlich waschen.
P271 Nur im Freien oder in gut belüfteten Räumen verwenden.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P303+P361+P353 BEI BERÜHRUNG MIT DER HAUT (oder dem Haar): Alle kontaminierten Kleidungsstücke sofort ausziehen. Haut mit Wasser abwaschen oder duschen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.

2-Ethoxy-2-methylpropan Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:

R11:Leichtentzündlich.
R36/38:Reizt die Augen und die Haut.

S-Sätze Betriebsanweisung:

S16:Von Zündquellen fernhalten - Nicht rauchen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.

Beschreibung

In the 1990s, the production of other fuel oxygenates began, with the appearance of ethyl tertiary-butyl ether, CAS RN 637- 92-3 (ETBE), first produced in France in 1992, and tertiary-amyl methyl ether, CAS RN 994-05-8 (TAME). To their number others have been added, such as diisopropyl ether, CAS RN 108-20-3 (DIPE) and, most recently, tertiary-amyl ethyl ether, CAS RN 919-94-8 (TAEE), which is being produced in Germany; however, the use of these oxygenates is currently small scale. Alcohols, such as ethanol, CAS RN 64-17-5 (EtOH) and methanol, may also be used as fuel oxygenates, but methanol is not used as such, although it is used in China as a liquid fuel for passenger cars and for synthesis of dimethyl ether as an alternative to diesel fuel for trucks and buses. Ethers have the advantage over alcohols in currently designed engines because alcohols in petrol tend to make the blend very volatile and water soluble, possibly creating problems in the fueldistribution system and vehicle engine. Perhaps the larger-scale use of ethanol in fuel oxygenation is in the production of ETBE or coblending with ETBE.

Chemische Eigenschaften

tert-Butyl ethyl ether is a colourless to light yellow liquid at a temperature range of -94 to 72.6 °C. It is soluble in ethanol, ethyl ether, and water. tert-Butyl ethyl ether has a strong, highly objectionable odor and taste at relatively low concentrations. This chemical is highly flammable and reacts with strong oxidizing agents. tert-Butyl ethyl ether is stable when stored at room temperature in tightly closed containers.

Verwenden

In 2006, because of litigation and liability fears, the blending (but not the production) of MTBE into petrol in the United States was discontinued, whereas the European Union (EU) has continued its use of ethers in blending. Other global producers and consumers of fuel ether oxygenates are the Middle East, South America (excluding Brazil), Mexico, and a large portion of Asia. The current global production capacity is estimated to be approximately 18 Mton year1. The expected demand for MTBE t ETBE in Asia is 11.9 Mton. In 2010, China was the world’s largest producer of MTBE (6.8 Mton year1), yet was also importing MTBE at 740 kton in the same year. In Japan, Bio-ETBE is the biofuel of choice for petrol. It is preferred over alcohols in Japan on the basis of emission benefits, vehicle performance, and existing regulations.

Verwenden

Gasoline additive. tert-Butyl ethyl ether is synthesized from ethanol and isobutene and is used primarily as an oxygenate that is added to gasoline to improve the automobile exhaust quality by reducing the ozone and carbon monoxide emissions (HSDB, 2012). tert-Butyl ethyl ether has similar utility compared to another widely used oxygenate, methyl tertiary butyl ether (MTBE), and thus is a potential replacement for MTBE.Usage of ETBE as a fuel additive has halted in the United States, falling from 2 to 4 million barrels per month in 2005 to 0 barrels in 2006 (DOE, 2007). tert-Butyl ethyl ether continues to be used widely in Europe (EFOA, 2010). Since ETBE is used almost exclusively in fuels, contamination of groundwater as a result of spillage or leakage of the underground storage tanks is a major source of environmental release.

Synthesis Reference(s)

Tetrahedron Letters, 29, p. 2445, 1988 DOI: 10.1016/S0040-4039(00)87903-4

Allgemeine Beschreibung

Clear light yellow liquid.

Air & Water Reaktionen

Highly flammable. TERT-BUTYL ETHYL ETHER may react with air to form dangerous peroxides. . Insoluble in water.

Reaktivität anzeigen

TERT-BUTYL ETHYL ETHER can act as a base to form salts with strong acids and addition complexes with Lewis acids. May react violently with strong oxidizing agents. Relatively inert in other reactions, which typically involve the breaking of the carbon-oxygen bond.

Health Hazard

Inhalation or contact with material may irritate or burn skin and eyes. Fire may produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.

Brandgefahr

TERT-BUTYL ETHYL ETHER is flammable.

Environmental Fate

Due to the usage of Ethyl tertiary butyl ether (ETBE ) as a fuel additive, ETBE may be released into air, soil, and water. Ethyl tertiary butyl ether will exist as a vapor at 25 °C due to its vapor pressure of 124mmHg and is estimated to have a half-life of 2 days. Upon release into the soil, ETBE is anticipated to have a high mobility based on the high soil organic carbon–water partitioning coefficient of 9–160. Once in the water, ETBE is not predicted to adsorb onto suspended particles and is likely to resist biodegradation (Deeb et al., 2001). Based on the Henry’s law constant, ETBE is likely to be volatized from the surface of the water (HSDB, 2012). A volatilization halflife of 3 h to 4 days is anticipated from water solutions. A bioconcentration factor (BCF) of 9 was estimated for ETBE to accumulate in fish, suggesting a relatively low propensity for aquatic bioaccumulation (HSDB, 2012).

läuterung methode

Dry the ether with CaSO4, pass it through an alumina column, and fractionally distil it. [Beilstein 1 IV 1618.]

2-Ethoxy-2-methylpropan Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


2-Ethoxy-2-methylpropan Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 140)Lieferanten
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637-92-3(2-Ethoxy-2-methylpropan)Verwandte Suche:


  • TERT-BUTYL ETHYL ETHER
  • T-BUTYLETHYL ETHER
  • 1,1-dimethylethylethylether
  • ethyltert-butyloxide
  • Propane,2-ethoxy-2-methyl-
  • tert-C4H9OC2H5
  • ETBE
  • ETHYL-TERT-BUTYL ETHER
  • ETHYL TERTIARY BUTYL ETHER
  • TERT-BUTYL ETHYL ETHER, 1000MG, NEAT
  • tert-Butylethylether,97%
  • METHYL-2-ETHOXYPROPANE
  • 1,1-Dimethylethoxyethane
  • Tere-butyl ethyl ether
  • tert-Butyl ethyl ether + blank RFA
  • tert-BUTYL ETHYL ETHER 99%
  • tert-Butyl ethyl eth
  • Ethyl tert-butyl ether (ETBE)
  • tert-Butyl ethyl ether, 97% 25GR
  • tert-Butyl ethyl ether
  • tert-Butyl ethyleether
  • tert-Butyl ethyl ether puruM, >=97.0% (GC)
  • Ethyl-tert-but
  • 2-ethoxy-2-methyl-propan
  • 2-Ethoxy-2-methylpropane
  • 2-ethoxy-2-methyl-propane
  • 2-methyl-2-ethoxypropane
  • Ether, tert-butyl ethyl
  • ether,tert-butylethyl
  • Ethyl tert-butyl oxide
  • ethyl(2-methyl-2-propyl)ether
  • ethyl1,1-dimethylethylether
  • tert-Butyl Ethyl Ether >
  • TERT-BUTYL ETHYL ETHER FOR SYNTHESIS
  • ert-Butylethylether
  • 637-92-3
  • CCH33OC2H5
  • CH33COCH2CH3
  • C2H5OCCH33
  • CH33COC2H5
  • 637923
  • Ethers
  • Organic Building Blocks
  • Oxygen Compounds
  • Building Blocks
  • Chemical Synthesis
  • Organic Building Blocks
  • Oxygen Compounds
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  • Organic Building Blocks
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