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675407

Sigma-Aldrich

tert-Butyl methyl ether

HPLC Plus, for HPLC, GC, and residue analysis, 99.9%

Synonym(s):

MTBE, Methyl tert-butyl ether

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About This Item

Linear Formula:
(CH3)3COCH3
CAS Number:
Molecular Weight:
88.15
Beilstein:
1730942
EC Number:
MDL number:
UNSPSC Code:
12190000
PubChem Substance ID:

grade

HPLC Plus
for residue analysis

Quality Level

vapor density

3.1 (vs air)

vapor pressure

4.05 psi

Assay

99.9%

form

liquid

autoignition temp.

705 °F

expl. lim.

15.1 %

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

impurities

≤0.02% Water

evapn. residue

≤0.0001%

refractive index

n20/D 1.369 (lit.)

bp

55-56 °C (lit.)

mp

-110 °C

density

0.74 g/mL at 25 °C (lit.)

UV absorption

λ: 210 nm Amax: ≤1.00
λ: 225 nm Amax: ≤0.50
λ: 250 nm Amax: ≤0.10
λ: 300 nm Amax: ≤0.005
λ: 400 nm Amax: ≤0.005

application(s)

food and beverages

SMILES string

COC(C)(C)C

InChI

1S/C5H12O/c1-5(2,3)6-4/h1-4H3

InChI key

BZLVMXJERCGZMT-UHFFFAOYSA-N

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General description

tert-Butyl methyl ether (MTBE) is a commonly used organic solvent. It can be synthesized by acid-catalyzed reaction between methanol and isobutene. It is an effective alternate to lead-containing additives for enhancing the octane rating of gasoline. The decomposition mechanism of MTBE by heat-assisted persulfate oxidation under different conditions has been reported. A study suggests that the addition of MTBE increases the number of active sites during polymerization of propene by the stopped-flow method.

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Pictograms

FlameExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Flam. Liq. 2 - Skin Irrit. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

-18.4 °F - closed cup

Flash Point(C)

-28 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Lipid extraction by methyl-tert-butyl ether for high-throughput lipidomics.
Matyash V, et al.
Journal of Lipid Research, 49(5), 1137-1146 (2008)
Relative solubility, stability, and absorptivity of lutein and β-carotene in organic solvents.
Craft NE and Soares JH.
Journal of Agricultural and Food Chemistry, 40(3), 431-434 (1992)
New approach of catalyst-free biodiesel production from canola oil in supercritical tert-butyl methyl ether (MTBE).
Farobie O, et al.
Fuel: The Science and Technology of Fuel and Energy, 135, 172-181 (2014)
Eagleson M.
Concise Encyclopedia Chemistry, 154-154 (1994)
Role of tert-Butyl Methyl Ether (TBME) as an External Donor in Propene Polymerization with Dibutyl Phthalate (DBP)-Containing MgCl2-Supported Ti Catalysts Activated with Al(i-C4H9)3.
Ohnishi R and Konakazawa T.
Macromolecular Chemistry and Physics, 205(14), 1938-1947 (2004)

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