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Merck

650560

Sigma-Aldrich

Terc-butilmetil éter

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

Sinónimos:

MTBE, Éter metil terc-butílico

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About This Item

Fórmula lineal:
(CH3)3COCH3
Número de CAS:
Peso molecular:
88.15
Beilstein/REAXYS Number:
1730942
EC Number:
MDL number:
UNSPSC Code:
12190000
PubChem Substance ID:
NACRES:
NA.07
grade:
HPLC Plus
for residue analysis
assay:
99.9%
technique(s):
HPLC: suitable
gas chromatography (GC): suitable
application(s):
food and beverages
bp:
55-56 °C (lit.)
vapor pressure:
4.05 psi
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grade

HPLC Plus
for residue analysis

Quality Level

vapor density

3.1 (vs air)

vapor pressure

4.05 psi

assay

99.9%

form

liquid

autoignition temp.

705 °F

expl. lim.

15.1 %

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

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

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

El éter terc-butilmetílico es un aditivo de la gasolina. Se ha analizado su degradación oxidativa por las cepas bacterianas que oxidan el propano.[1] Se ha investigado la cinética de su oxidación con persulfato termoasistida a varios pH, temperaturas, concentraciones de oxidante y fuerzas iónicas. Su biodegradación seguía un modelo de degradación de pseudo-primer orden.[2] El MTBE puede sintetizarse en una reacción catalizada por ácido entre el metanol y el isobuteno.[3] En un estudio se sugiere que la adición de MTBE aumenta el número de sitios activos durante la polimerización del propeno por el método del flujo detenido.[4]

Application

Adecuado para HPCL, espectofotometría, análisis medioambientales

Other Notes

Los recipientes Pure-Pac® II precisan el acoplador Micromatic MacroValve, Z560723, para la dispensación de los disolventes.

Recommended products

Descubra los reactivos LiChropur ideales para análisis mediante HPLC o LC-MS

Legal Information

Pure-Pac is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

FlameExclamation mark

signalword

Danger

hcodes

Hazard Classifications

Flam. Liq. 2 - Skin Irrit. 2

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

-18.4 °F - closed cup

flash_point_c

-28 °C - closed cup


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Los clientes también vieron

Lipid extraction by methyl-tert-butyl ether for high-throughput lipidomics.
Matyash V, et al.
Journal of Lipid Research, 49(5), 1137-1146 (2008)
Eagleson M.
Concise Encyclopedia Chemistry, 154-154 (1994)
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)
Carotenoid Extraction and Quantification from Capsicum annuum.
Richins RD, et al.
Bio-protocol, 4(19), e1256-e1256 (2014)
Role of tert-Butyl Methyl Ether (TBME) as an External Donor in Propene Polymerization with Dibutyl Phthalate (DBP)-Containing MgCl2-Supported Ti Catalysts Activated with Al(i-C4H9)3.
Ohnishi R and Konakazawa T.
Macromolecular Chemistry and Physics, 205(14), 1938-1947 (2004)

Questions

1–2 of 2 Questions  
  1. 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

      Helpful?

  2. 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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