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306975

Sigma-Aldrich

Terc-butilmetil éter

anhydrous, 99.8%

Sinónimos:

MTBE, Éter metil terc-butílico

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About This Item

Fórmula lineal:
(CH3)3COCH3
Número de CAS:
1634-04-4
Peso molecular:
88.15
Beilstein:
1730942
Número CE:
216-653-1
Número MDL:
MFCD00008812
Código UNSPSC:
12352112
ID de la sustancia en PubChem:
57648465
NACRES:
NA.21
bp:
55-56 °C (lit.)
En este momento no podemos mostrarle ni los precios ni la disponibilidad

grado

anhydrous

Nivel de calidad

100

densidad de vapor

3.1 (vs air)

presión de vapor

4.05 psi

Ensayo

99.8%

Formulario

liquid

temp. de autoignición

705 °F

lim. expl.

15.1 %

impurezas

<0.003% water
<0.005% water (100 mL pkg)

residuo de evap.

<0.0005%

índice de refracción

n20/D 1.369 (lit.)

bp

55-56 °C (lit.)

mp

-110 °C

densidad

0.74 g/mL at 25 °C (lit.)

cadena SMILES

COC(C)(C)C

InChI

1S/C5H12O/c1-5(2,3)6-4/h1-4H3

Clave InChI

BZLVMXJERCGZMT-UHFFFAOYSA-N

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Descripción general

tert-Butyl methyl ether (MTBE) is a gasoline additive. MTBE undergoes oxidative degradation in the presence of propane-oxidizing bacterial strains.[1] The kinetic studies of heat-assisted persulfate oxidation of MTBE under various parameters suggests that the reaction follows the pseudo-first-order kinetics.[2] MTBE can be synthesized by acid catalyzed reaction between methanol and isobutene.[3] A study suggests that the addition of MTBE increases the number of active sites during polymerization of propene by stopped-flow method.[4]
tert-Butyl methyl ether is a commonly used organic solvent that can be synthesized by acid catalyzed reaction between methanol and isobutene.[5] It is an effective alternative to lead containing additives for enhancing the octane rating of gasoline.[6]

Aplicación

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.[7]

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Referencia del producto
Descripción
Precios

Pictogramas

FlameExclamation mark
GHS02,GHS07

Palabra de señalización

Danger

Frases de peligro

H225,H315

Clasificaciones de peligro

Flam. Liq. 2 - Skin Irrit. 2

Código de clase de almacenamiento

3 - Flammable liquids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

-18.4 °F - closed cup

Punto de inflamabilidad (°C)

-28 °C - closed cup

Equipo de protección personal

Eyeshields, Faceshields, Gloves

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Certificados de análisis (COA)

Lot/Batch Number
SHBS4423
SHBS3112
SHBR5823
SHBR9152
SHBR2238

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<BIG>Eagleson M. </BIG>
Concise Encyclopedia Chemistry, 154-154 (1995)
Application of artificial neural networks for modeling of the treatment of wastewater contaminated with methyl tert-butyl ether (MTBE) by UV/H 2 O 2 process.
Salari D, et al.
Journal of Hazardous Materials, 125(1), 205-210 (2005)
Viktor Nilsson et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 21(11), 1166-1176 (2020-04-21)
To elucidate what properties control and practically limit ion transport in highly concentrated electrolytes (HCEs), the viscosity, ionic conductivity, ionicity, and transport numbers were studied for nine model electrolytes and connected to the rate capability in Li-ion battery (LIB) cells.
Relative solubility, stability, and absorptivity of lutein and β-carotene in organic solvents.
Craft NE and Soares JH.
Journal of Agricultural and Food Chemistry, 40(3), 431-434 (1992)
New approach of catalyst-free biodiesel production from canola oil in supercritical tert-butyl methyl ether (MTBE).
Farobie O, et al.
Fuel: The Science and Technology of Fuel and Energy, 135, 172-181 (2014)
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Questions

1–3 of 3 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  3. How is the dehydration process for this product? Is it through molecular sieves or by using sodium?

    1 answer

    1. Molecular sieves are employed to dehydrate the product.

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