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Sigma-Aldrich

tert-Butyl ethyl ether

purum, ≥97.0% (GC)

Synonym(s):

2-Methyl-2-ethoxypropane, ETBE, Ethyltert-butyl ether, Ethyltert-butyl oxide

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About This Item

Linear Formula:
C2H5OC(CH3)3
CAS Number:
637-92-3
Molecular Weight:
102.17
Beilstein:
1731469
EC Number:
211-309-7
MDL number:
MFCD00009225
UNSPSC Code:
12352100
eCl@ss:
39021026
PubChem Substance ID:
329747574
NACRES:
NA.22

vapor pressure

155 mmHg ( 25 °C)

Quality Level

100

grade

purum

Assay

≥97.0% (GC)

form

liquid

contains

~0.01% 2,6-Di-tert-butyl-4-methlyphenol as stabilizer

refractive index

n20/D 1.375 (lit.)
n20/D 1.376

bp

72-73 °C (lit.)

mp

−97 °C (lit.)

density

0.742 g/mL at 25 °C (lit.)

SMILES string

CCOC(C)(C)C

InChI

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

InChI key

NUMQCACRALPSHD-UHFFFAOYSA-N

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Application

tert-Butyl ethyl ether (ETBE) is generally used as an antiknock additive in gasoline for the reduction of carbon monoxide and unburned hydrocarbons emission from automobile exhausts.

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Danger

Hazard Statements

H225,H336

Hazard Classifications

Flam. Liq. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

-2.2 °F - closed cup

Flash Point(C)

-19 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCK4137
BCCF1801
BCBW3187
BCBQ9567V
BCBN4911V

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Experimental and modeling study of the gas-phase oxidation of methyl and ethyl tertiary butyl ethers.
Glaude PA, et al.
Combustion and Flame, 121(1-2), 345-355 (2000)
Effect of additives on the antiknock properties and Reid vapor pressure of gasoline.
Da Silva R, et al.
Fuel: The Science and Technology of Fuel and Energy, 84(7-8), 951-959 (2005)
G A Westphal et al.
Toxicology, 268(3), 198-203 (2009-12-26)
Fuel additives can improve combustion and knock resistance of gasoline engines. Common additives in commercial fuels are "short-chain, oxygen containing hydrocarbons" such as methyl tert-butyl ether (MTBE) and ethyl tert-butyl ether (ETBE). Since these additives change the combustion characteristics, this
L L Karbovskyĭ et al.
Ukrains'kyi biokhimichnyi zhurnal (1999 ), 83(3), 5-24 (2011-09-06)
Most physiological processes of all organisms are rhythmic with a period of about 24 h and are generated by an endogenous biological CLOCK present in all cells. However, there is also a central CLOCK--the primary circadian pacemaker which is localized
Zuquan Weng et al.
Industrial health, 49(3), 396-399 (2011-03-05)
To clarify the genotoxicity of ethyl tertiary butyl ether (ETBE), a gasoline additive, male and female C57BL/6 mice of Aldh2+/+ and Aldh2-/- genotypes, aged 8 wk, were exposed to 0, 500, 1,750, or 5,000 ppm ETBE for 6 h/day, 5
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