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Merck

179787

tert-Butyl methyl ether

reagent grade, ≥98%

Synonym(s):

MTBE, Methyl tert-butyl ether

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About This Item

Linear Formula:
(CH3)3COCH3
CAS Number:
1634-04-4
Molecular Weight:
88.15
UNSPSC Code:
12352112
NACRES:
NA.07
PubChem Substance ID:
329751595
EC Number:
216-653-1
Beilstein/REAXYS Number:
1730942
MDL number:
MFCD00008812
Assay:
≥98%
Grade:
reagent grade
Vapor pressure:
14.78 psi ( 55 °C), 4.05 psi ( 20 °C)

Key Documents

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InChI key

BZLVMXJERCGZMT-UHFFFAOYSA-N

InChI

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

SMILES string

COC(C)(C)C

grade

reagent grade

vapor density

3.1 (vs air)

vapor pressure

14.78 psi ( 55 °C), 4.05 psi ( 20 °C)

assay

≥98%

form

liquid

autoignition temp.

705 °F

expl. lim.

15.1 %

dilution

(for analytical testing)

impurities

≤0.0005% peroxides (as H2O2), ≤0.1% water (Karl Fischer)

Quality Level

100

mp

-110 °C

density

0.74 g/mL at 25 °C (lit.)

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General description

tert-Butyl methyl ether is a commonly used organic solvent. It can be synthesized by acid catalyzed reaction between methanol and isobutene. It is an effective alternative to lead containing additives for enhancing the octane rating of gasoline.

Application

tert-Butyl methyl ether may be used to synthesize fatty acid methyl esters (FAMEs) and glycerol tert-butyl ether via transesterification with canola oil under supercritical conditions. Its addition during the polymerization of propene by stopped-flow method increases the number of active sites.

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Danger

hcodes

H225,H315

Hazard Classifications

Flam. Liq. 2 - Skin Irrit. 2

Storage Class

3 - Flammable liquids

wgk

WGK 1

flash_point_f

-18.4 °F - closed cup

flash_point_c

-28 °C - closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
SHBT5115
SDBB5894
SHBT1676
SHBT0946
SHBS7803

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Removal of methyl tert-butyl ether (MTBE) with Nafion.
Lien HL and Zhang WX
Journal of Hazardous Materials, 144(1), 194-199 (2007)
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)
Eagleson M.
Concise Encyclopedia Chemistry, 154-154 (1994)
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)
J R Hanson et al.
Applied and environmental microbiology, 65(11), 4788-4792 (1999-11-05)
A bacterial strain, PM1, which is able to utilize methyl tert-butyl ether (MTBE) as its sole carbon and energy source, was isolated from a mixed microbial consortium in a compost biofilter capable of degrading MTBE. Initial linear rates of MTBE
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