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443808 Sigma-Aldrich

tert-Butyl methyl ether

ACS reagent, ≥99.0%

Synonym: MTBE, Methyl tert-butyl ether

  • CAS Number 1634-04-4

  • Linear Formula (CH3)3COCH3

  • Molecular Weight 88.15

  •  Beilstein/REAXYS Number 1730942

  •  EC Number 216-653-1

  •  MDL number MFCD00008812

  •  PubChem Substance ID 329756503

  •  NACRES NA.07

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Properties

Related Categories ACS Grade, ACS Grade Solvents, ACS and Reagent Grade Solvents, Amber Glass Bottles, Carbon Steel Cans with NPT Threads,
Quality Level   200
grade   ACS reagent
vapor pressure   4.05 psi
vapor density   3.1 (vs air)
assay   ≥99.0%
autoignition temp.   705 °F
expl. lim.   15.1 %
impurities   ≤0.05% water
  <1 ppm H2O2
evapn. residue   ≤0.001%
color   APHA: ≤10
refractive index   n20/D 1.369 (lit.)
bp   55-56 °C (lit.)
mp   -110 °C
density   0.74 g/mL at 25 °C (lit.)
SMILES string   COC(C)(C)C
InChI   1S/C5H12O/c1-5(2,3)6-4/h1-4H3
InChI key   BZLVMXJERCGZMT-UHFFFAOYSA-N

Description

General description

tert-Butyl methyl ether (methyl tert-butyl ether, MTBE) is a gasoline additive. Its oxidative degradation by propane-oxidizing bacterial strains has been tested. Kinetics of its heat-mediated biodegradation has been investigated under various reaction conditions. Its biodegradation followed a pseudo-first-order decay model and its pseudo-first-order rate constants were evaluated. Its extraction from water has been proposed by employing an organic polymeric compound, Nafion. MTBE can be synthesized by acid-catalyzed reaction between methanol and isobutene. A study suggests that the addition of MTBE increases the number of active sites during polymerization of propene by stopped-flow method. This solvent meets ACS (American Chemical Society) specifications and can be used for processes requiring strict quality conditions such as analytical testing.

Application

tert-Butyl methyl ether (methyl tert-butyl ether, MTBE) may be used:
• As sole carbon and energy source in a mixed microbial consortium.
• To extract lipids from biological fluids for shotgun profiling.
• To synthesize fatty acid methyl esters (FAMEs) and glycerol tert-butyl ether by transesterification of canola oil in the absence of catalyst under supercritical condition.

Packaging

1, 6×1 L in Sure/Seal™

2.5, 4×2.5, 4×4 L in glass bottle

18, 200 L in steel drum

500 mL in Sure/Seal™

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 2398 3 / PGII
WGK Germany 
1
RTECS 
KN5250000
Flash Point(F) 
-27.4 °F
Flash Point(C) 
-33 °C

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Dispensette™ S
Protocols & Articles

Articles

Pressure-Temperature Calculator for Solvents

*Calculations provide estimated results based on Antoine's Coefficients and their associated temperature range values. Antoine's Coefficients were obtained from the National Institute of Standards an...

Peer-Reviewed Papers
15

References

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