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295299

Sigma-Aldrich

Dimethylether

≥99%

Synonym(e):

Methylether

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About This Item

Lineare Formel:
(CH3)2O
CAS-Nummer:
115-10-6
Molekulargewicht:
46.07
Beilstein:
1730743
EG-Nummer:
204-065-8
MDL-Nummer:
MFCD00008494
UNSPSC-Code:
12142100
PubChem Substanz-ID:
24857771
NACRES:
NA.22
Preise und Verfügbarkeit sind derzeit nicht verfügbar.

Dampfdichte

1.62 (vs air)

Dampfdruck

>760 mmHg ( 25 °C)

Assay

≥99%

Selbstzündungstemp.

662 °F

Expl.-Gr.

27 %

bp

−24.8 °C (lit.)

mp (Schmelzpunkt)

−141 °C (lit.)

Funktionelle Gruppe

ether

SMILES String

COC

InChI

1S/C2H6O/c1-3-2/h1-2H3

InChIKey

LCGLNKUTAGEVQW-UHFFFAOYSA-N

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Allgemeine Beschreibung

Dimethyl ether (DME) is the simplest aliphatic ether used as a reactant as well as a solvent in organic synthesis. It is used as a precursor for the preparation of important useful organic compounds. DME is also used as an aerosol propellant.[1][2][3]

Anwendung

DME can be used as precursor for the production dimethyl sulfate by treatment with sulfur trioxide. Dimethyl sulfate is employed as a versatile methylating agent in chemical synthesis. It is also used as a starting material for preparation of dimethyl sulfide, acetic acid, unsaturated and saturated hydrocarbons, and formadehyde.[1]
Dimethyl ether (DME) can be used as a precursor to synthesize methyl acetate,[4][5][6] oligomeric oxymethylene ethers (OMEs),[7] polyoxymethylene dimethyl ethers (DMMx)[8] and light olefins.[9]

Verpackung

Packaged in Sure/Pac™ carbon steel cylinders with 1/4" NPTM brass needle valve

Rechtliche Hinweise

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

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PTFE-Dichtungsband, W 1/2 in.

Piktogramme

FlameGas cylinder
GHS02,GHS04

Signalwort

Danger

H-Sätze

H220,H280

Gefahreneinstufungen

Flam. Gas 1A - Press. Gas Liquefied gas

Lagerklassenschlüssel

2A - Gases

WGK

WGK 1

Flammpunkt (°F)

-41.8 °F - closed cup

Flammpunkt (°C)

-41 °C - closed cup

Persönliche Schutzausrüstung

Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
SHBS6635
SHBS1412
SHBR0426
SHBQ2999
SHBN9987

Die passende Version wird nicht angezeigt?

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In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.

Die Dokumentenbibliothek aufrufen

Dimethyl ether
Muller M, et al.
Ullmann's Encyclopedia of Industrial Chemistry (2000)
Dimethyl ether carbonylation to methyl acetate over highly crystalline zeolite seed-derived ferrierite.
Kim J, et al.
Catalysis Science & Technology, 8(12), 3060-3072 (2018)
Nature and Location of Carbonaceous Species in a Composite HZSM-5 Zeolite Catalyst during the Conversion of Dimethyl Ether into Light Olefins.
Iba?ez M, et al.
Catalysts, 7(9), 254-254 (2017)
Carbonylation of dimethyl ether over Co-HMOR.
Ma M,et al.
Catalysis Science & Technology, 8(8), 2124-2130 (2018)
Synthesis of Polyoxymethylene Dimethyl Ethers from Dimethyl Ether Direct Oxidation over Carbon?Based Catalysts.
Gao X-Y, et al.
ChemCatChem, 10(1), 273-279 (2018)
Alle zugehörigen Dokumente anzeigen

Fragen

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

    1 Antwort

    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 Antwort

    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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