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03202

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.)

functional group

ether

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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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)
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)
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
Akihiro Hagiwara et al.
Toxicology, 289(2-3), 160-166 (2011-08-26)
The modifying potential of ethyl tertiary-butyl ether (ETBE) on tumor development was investigated in a medium-term multi-organ carcinogenesis bioassay using male F344 rats. Animals were sequentially given 5 carcinogens with different target sites in the first 4 weeks for multi-organ
Yuzo Asano et al.
Drug and chemical toxicology, 34(3), 311-317 (2011-06-09)
Ethyl tertiary-butyl ether (ETBE) is commonly used as an oxygenated gasoline additive. In this study, the prenatal developmental toxicity of ETBE was determined in rabbits. New Zealand white rabbits were given ETBE by gavage at 100, 300, or 1,000 mg/kg/day
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