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34875

Sigma-Aldrich

tert-Butyl methyl ether

suitable for HPLC, ≥99.8%

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

vapor density

3.1 (vs air)

Quality Level

vapor pressure

4.05 psi

assay

≥99.8%

form

liquid

autoignition temp.

705 °F

expl. lim.

15.1 %

technique(s)

HPLC: suitable

impurities

≤0.0005% non-volatile matter
≤0.0005% peroxides (as H2O2)
≤0.002% free acid (as CH3COOH)
≤0.01% water (Karl Fischer)

color

APHA: ≤10

transmittance

220 nm, ≥40%
250 nm, ≥80%
260 nm, ≥90%
290 nm, ≥99%

refractive index

n20/D 1.369 (lit.)

bp

55-56 °C (lit.)

mp

-110 °C

density

0.74 g/mL at 25 °C (lit.)

UV absorption

λ: 210 nm Amax: ≤1.0
λ: 220 nm Amax: ≤0.40
λ: 250 nm Amax: ≤0.10
λ: 260 nm Amax: ≤0.05
λ: 300 nm Amax: ≤0.005
λ: 400 nm Amax: ≤0.005

application(s)

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

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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. Kinetic studies of its heat-assisted persulfate oxidation at various pH, temperature, oxidant concentration and ionic strength levels suggests that reaction exhibits a pseudo-first-order decay model.

Application

tert-Butyl methyl ether (methyl tert-butyl ether, MTBE) has been used in the isolation and quantitative determination of carotenes and xanthophylls from Capsicum annum pericarp extracts by HPLC.

Packaging

100 mL in glass bottle
1, 6×1, 2, 4×2, 4, 4×4 L in glass bottle
200 L in Pure-Pac™ 1
200 L in Pure-Pac™ 2

Other Notes

Important notice
  • The article number 34875-4X2.5L will be discontinued. Please order the single bottle 34875-2.5L which is physically identical with the same exact specifications.
  • The article number 34875-6X1L will be discontinued. Please order the single bottle 34875-1L which is physically identical with the same exact specifications.

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Pictograms

FlameExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Flam. Liq. 2 - Skin Irrit. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

-18.4 °F - closed cup

Flash Point(C)

-28 °C - closed cup

Certificate of Analysis

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Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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