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295299

Sigma-Aldrich

Dimethyl ether

≥99%

Sinônimo(s):

DME, Methyl ether

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About This Item

Fórmula linear:
(CH3)2O
Número CAS:
115-10-6
Peso molecular:
46.07
Beilstein:
1730743
Número CE:
204-065-8
Número MDL:
MFCD00008494
Código UNSPSC:
12142100
ID de substância PubChem:
24857771
NACRES:
NA.22
Preço e disponibilidade não estão disponíveis no momento.

densidade de vapor

1.62 (vs air)

pressão de vapor

>760 mmHg ( 25 °C)

Ensaio

≥99%

temperatura de autoignição

662 °F

Lim. expl.

27 %

p.e.

−24.8 °C (lit.)

pf

−141 °C (lit.)

grupo funcional

ether

cadeia de caracteres SMILES

COC

InChI

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

chave InChI

LCGLNKUTAGEVQW-UHFFFAOYSA-N

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Descrição geral

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]

Aplicação

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]

Embalagem

Supplied in a Sure/Pac™ cylinder and has a brass needle valve with a male 1/4" NPTF outlet thread installed. Before using the cylinder, ensure that the valve is closed, then remove the galvanized steel hex cap that seals the outlet valve.

Compatible with the following:

Informações legais

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

Pictogramas

FlameGas cylinder
GHS02,GHS04

Palavra indicadora

Danger

Frases de perigo

H220,H280

Declarações de precaução

P210 - P377 - P381 - P410 + P403

Classificações de perigo

Flam. Gas 1A - Press. Gas Liquefied gas

Código de classe de armazenamento

2A - Gases

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

-41.8 °F - closed cup

Ponto de fulgor (°C)

-41 °C - closed cup

Equipamento de proteção individual

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

Escolha uma das versões mais recentes:

Certificados de análise (COA)

Lot/Batch Number
SHBS1412
SHBR0426
SHBQ2999
SHBN9987
SHBM6756

Não está vendo a versão correta?

Se precisar de uma versão específica, você pode procurar um certificado específico pelo número do lote ou da remessa.

Pesquise por COA

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Encontre a documentação dos produtos que você adquiriu recentemente na biblioteca de documentos.

Visite a Biblioteca de Documentos

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)
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)
Heterogeneously catalyzed synthesis of oxymethylene dimethyl ethers (OME) from dimethyl ether and trioxane.
Haltenort P, et al.
Catalysis Communications, 109, 80-84 (2018)
Carbonylation of dimethyl ether over Co-HMOR.
Ma M,et al.
Catalysis Science & Technology, 8(8), 2124-2130 (2018)
Exibir todos os documentos relacionados

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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