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179787 Sigma-Aldrich

tert-Butyl methyl ether

reagent grade, ≥98%

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 329751595

  •  NACRES NA.07

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Properties

Related Categories ACS and Reagent Grade Solvents, Amber Glass Bottles, Reagent, Reagent Grade Solvents, Solvent Bottles,
Quality Level   100
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 %
impurities   ≤0.0005% peroxides (as H2O2)
  ≤0.1% water (Karl Fischer)
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 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.

Packaging

1, 4 L in glass bottle

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 2398 3 / PGII
WGK Germany 
WGK 1
RTECS 
KN5250000
Flash Point(F) 
-18.4 °F - closed cup
Flash Point(C) 
-28 °C - closed cup

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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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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