Chemical Property of tert-Butyl ethyl ether
Chemical Property:
- Appearance/Colour:clear, colorless liquid.
- Vapor Pressure:155 mm Hg ( 25 °C)
- Melting Point:?97 °C(lit.)
- Refractive Index:n20/D 1.375(lit.)
- Boiling Point:70 °C at 760 mmHg
- Flash Point:-19 C (closed cup)
- PSA：9.23000
- Density:0.742 g/mL at 25 °C(lit.)
- LogP:1.82140
- Storage Temp.:Flammables area
- Solubility.:water: soluble1.2 g/100g at 20°C(lit.)
- Water Solubility.:Miscible with alcohol, ethyl ether. Slightly miscible with water.
- XLogP3:1.4
- Hydrogen Bond Donor Count:0
- Hydrogen Bond Acceptor Count:1
- Rotatable Bond Count:2
- Exact Mass:102.104465066
- Heavy Atom Count:7
- Complexity:42.6
- Transport DOT Label:Flammable Liquid
- Purity/Quality:
-
99%, *data from raw suppliers
tert-Butyl Ethyl Ether >95.0%(GC) *data from reagent suppliers
Safty Information:
- Pictogram(s):
F
Xi
- Hazard Codes:F,Xi
- Statements:
11-36/38-67
- Safety Statements:
16-26
- MSDS Files:
-
SDS file from LookChem
Total 1 MSDS from other Authors
Useful:
- Chemical Classes:Solvents -> Ethers (
- Canonical SMILES:CCOC(C)(C)C
- Inhalation Risk:A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20 °C when dispersed.
- Effects of Short Term Exposure:The substance is irritating to the eyes, skin and respiratory tract. If swallowed the substance easily enters the airways and could result in aspiration pneumonitis. The substance may cause effects on the central nervous system. Exposure could cause lowering of consciousness.
- Effects of Long Term Exposure:Repeated or prolonged contact with skin may cause dermatitis.
-
Description
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.
-
Uses
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. 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. tert-Butyl ethyl ether is used as an oxygenate gasoline additive oxygenate during its production from crude oil. It is used as an extractant in human urine by using single-walled carbon nanotubes as an adsorbent. It plays an important role as a fuel component in petrol to enhance its octane rating.
