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650560 Sigma-Aldrich

tert-Butyl methyl ether

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

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 329760029

  •  NACRES NA.07

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Properties

Related Categories Amber Glass Bottles, Analytical Reagents, Analytical/Chromatography, Chromatography Reagents & Solvents, HPLC Plus,
Quality Level   100
grade   HPLC Plus
  for GC
  for HPLC
  for residue analysis
vapor density   3.1 (vs air)
vapor pressure   4.05 psi
assay   99.9%
autoignition temp.   705 °F
expl. lim.   15.1 %
impurities   ≤0.02% water
  <1.0 ppb Fluorescence (quinine) at 365 nm
evapn. residue   ≤0.0001%
halogenated residue   ≤10 ng/L (as heptachlor epoxide)
refractive index   n20/D 1.369 (lit.)
bp   55-56 °C (lit.)
mp   -110 °C
density   0.74 g/mL at 25 °C (lit.)
λ   H2O reference
UV absorption   λ: 210 nm Amax: 1.0
  λ: 225 nm Amax: 0.50
  λ: 250 nm Amax: 0.10
  λ: 300-400 nm Amax: 0.005
Featured Industry   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

Description

General description

tert-Butyl methyl ether is a gasoline additive. Its oxidative degradation by propane-oxidizing bacterial strains has been tested. Kinetics of its heat-assisted persulfate oxidation has been investigated at various pH, temperature, oxidant concentration and ionic strength levels. Its biodegradation followed a pseudo-first-order decay model and its pseudo-first-order rate constants were evaluated. 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.

Application

Suitable for HPLC, spectrophotometry, environmental testing

Packaging

1, 6×1, 4, 4×4 L in glass bottle

50 L in Pure-Pac™ 2

56 L in Pure-Pac™ 1

Other Notes

Pure-Pac® II containers require the Micromatic MacroValve coupler for dispensing solvents, Z560723.

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Legal Information

Pure-Pac is a registered trademark of Sigma-Aldrich Co. LLC

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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