Wszystkie zdjęcia(1)

34875

Sigma-Aldrich

tert-Butyl methyl ether

suitable for HPLC, ≥99.8%

Synonim(y):
MTBE, Methyl tert-butyl ether
Wzór liniowy:
(CH3)3COCH3
Numer CAS:
Masa cząsteczkowa:
88.15
Beilstein:
1730942
Numer EC:
Numer MDL:
Identyfikator substancji w PubChem:
NACRES:
NA.07

Poziom jakości

100

gęstość pary

3.1 (vs air)

ciśnienie pary

4.05 psi

próba

≥99.8%

forma

liquid

temp. samozapłonu

705 °F

granice wybuchowości

15.1 %

technique(s)

HPLC: suitable

zanieczyszczenia

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

kolor

APHA: ≤10

przepuszczalność

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

współczynnik refrakcji

n20/D 1.369 (lit.)

tw

55-56 °C (lit.)

mp

-110 °C

gęstość

0.74 g/mL at 25 °C (lit.)

absorpcja UV

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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Opis ogólny

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.

Zastosowanie

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.

Opakowanie

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
100 mL in glass bottle

Inne uwagi

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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piktogramy

FlameExclamation mark

Hasło ostrzegawcze

Danger

Zwroty wskazujące rodzaj zagrożenia

Zwroty wskazujące środki ostrożności

Klasyfikacja zagrożeń

Flam. Liq. 2 - Skin Irrit. 2

Kod klasy składowania

3 - Flammable liquids

WGK

WGK 1

Temperatura zapłonu °F

-18.4 °F - closed cup

Temperatura zapłonu °C

-28 °C - closed cup

Certyfikat analizy

Świadectwo pochodzenia

Shigeo Takashima et al.
Scientific reports, 10(1), 12988-12988 (2020-08-02)
Fatty acids (FAs) are the central components of life: they constitute biological membranes in the form of lipid, act as signaling molecules, and are used as energy sources. FAs are classified according to their chain lengths and the number and
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
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)
Torsten C Schmidt et al.
Journal of contaminant hydrology, 70(3-4), 173-203 (2004-05-12)
The fate of fuel oxygenates such as methyl tert-butyl ether (MTBE) in the subsurface is governed by their degradability under various redox conditions. The key intermediate in degradation of MTBE and ethyl tert-butyl ether (ETBE) is tert-butyl alcohol (TBA) which

Produkty

GC Analysis of Class 3 Residual Solvents on OVI-G43

Butyl methyl ether; Acetic acid; 2-Butanone; Ethyl acetate; Tetrahydrofuran; 1-Butanol; Isopropyl acetate; Heptane; Propyl acetate; 3-Methylbutanol; 4-Methyl-2-pentanone; Isobutyl acetate; Butyl acetate; Dimethyl sulfoxide; Anisole; Cumene

Protokoły

GC Analysis of Class 3 Residual Solvents on SUPELCOWAX® 10

Protocol for GC Analysis of Class 3 Residual Solvents on SUPELCOWAX® 10

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