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20256

Sigma-Aldrich

tert-Butyl methyl ether

puriss. p.a., ≥99.5% (GC)

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Synonym(s):
MTBE, Methyl tert-butyl ether
Linear Formula:
(CH3)3COCH3
CAS Number:
Molecular Weight:
88.15
Beilstein/REAXYS Number:
1730942
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.07

vapor density

3.1 (vs air)

Quality Level

vapor pressure

4.05 psi

grade

puriss. p.a.

assay

≥99.5% (GC)

form

liquid

autoignition temp.

705 °F

expl. lim.

15.1 %

impurities

≤0.0005% peroxides (as H2O2)
≤0.005% free acid (as CH3COOH)
≤0.05% water

evapn. residue

≤0.005%

refractive index

n20/D 1.362-1.376
n20/D 1.369 (lit.)

bp

55-56 °C (lit.)

mp

-110 °C

density

0.736-0.744 g/mL at 20 °C
0.74 g/mL at 25 °C (lit.)

cation traces

Al: ≤0.5 mg/kg
Ba: ≤0.1 mg/kg
Bi: ≤0.1 mg/kg
Ca: ≤0.5 mg/kg
Cd: ≤0.05 mg/kg
Co: ≤0.02 mg/kg
Cr: ≤0.02 mg/kg
Cu: ≤0.02 mg/kg
Fe: ≤0.1 mg/kg
K: ≤0.5 mg/kg
Li: ≤0.1 mg/kg
Mg: ≤0.1 mg/kg
Mn: ≤0.02 mg/kg
Mo: ≤0.1 mg/kg
Na: ≤0.5 mg/kg
Ni: ≤0.02 mg/kg
Pb: ≤0.1 mg/kg
Sr: ≤0.1 mg/kg
Zn: ≤0.1 mg/kg

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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1 of 4

This Item
179787306975650560
tert-Butyl methyl ether puriss. p.a., ≥99.5% (GC)

20256

tert-Butyl methyl ether

tert-Butyl methyl ether reagent grade, ≥98%

179787

tert-Butyl methyl ether

tert-Butyl methyl ether anhydrous, 99.8%

306975

tert-Butyl methyl ether

tert-Butyl methyl ether HPLC Plus, for HPLC, GC, and residue analysis, 99.9%

650560

tert-Butyl methyl ether

assay

≥99.5% (GC)

assay

≥98%

assay

99.8%

assay

99.9%

grade

puriss. p.a.

grade

-

grade

-

grade

-

form

liquid

form

liquid

form

liquid

form

liquid

autoignition temp.

705 °F

autoignition temp.

705 °F

autoignition temp.

705 °F

autoignition temp.

705 °F

density

0.736-0.744 g/mL at 20 °C, 0.74 g/mL at 25 °C (lit.)

density

0.74 g/mL at 25 °C (lit.)

density

0.74 g/mL at 25 °C (lit.)

density

0.74 g/mL at 25 °C (lit.)

General description

tert-Butyl methyl ether (TBME) TBME is a common organic solvent used in the Grignard reaction as an alternative to tetrahydrofuran. TBME has been reported to be a butylating agent for active aromatic systems. TBME is also used to facilitate tert-butyl esterification under microwave conditions.

Application

tert-Butyl methyl ether is used as a solvent:
  • In the synthesis of acyl azides.
  • In the production of biodiesel.

pictograms

FlameExclamation mark

signalword

Danger

Hazard Classifications

Flam. Liq. 2 - Skin Irrit. 2

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

-18.4 °F - closed cup

flash_point_c

-28 °C - closed cup


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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
Kun-Chang Huang et al.
Chemosphere, 49(4), 413-420 (2002-10-09)
The kinetics of heat-assisted persulfate oxidation of methyl tert-butyl ether (MTBE) in aqueous solutions at various pH, temperature, oxidant concentration and ionic strength levels was studied. The MTBE degradation was found to follow a pseudo-first-order decay model. The pseudo-first-order rate
R J Steffan et al.
Applied and environmental microbiology, 63(11), 4216-4222 (1997-11-15)
Several propane-oxidizing bacteria were tested for their ability to degrade gasoline oxygenates, including methyl tert-butyl ether (MTBE), ethyl tert-butyl ether (ETBE), and tert-amyl methyl ether (TAME). Both a laboratory strain and natural isolates were able to degrade each compound after
Eva M Seeger et al.
Water research, 47(2), 769-780 (2012-12-04)
For several pilot-scale constructed wetlands (CWs: a planted and unplanted gravel filter) and a hydroponic plant root mat (operating at two water levels), used for treating groundwater contaminated with BTEX, the fuel additive MTBE and ammonium, the hydrodynamic behavior was
Free radical mechanisms for the treatment of methyl tert-butyl ether (MTBE) via advanced oxidation/reductive processes in aqueous solutions.
William J Cooper et al.
Chemical reviews, 109(3), 1302-1345 (2009-01-27)

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