295299

Dimethyl ether

≥99%

• Synonim(y): DME, Methyl ether
• Wzór liniowy: (CH₃)₂O
• Numer CAS: 115-10-6
• Masa cząsteczkowa: 46.07
• Beilstein: 1730743
• Numer WE: 204-065-8
• Numer MDL: MFCD00008494
• Kod UNSPSC: 12142100
• Identyfikator substancji w PubChem: 24857771
• NACRES: NA.22

Właściwości

• gęstość pary: 1.62 (vs air)
• Poziom jakości: 100
• ciśnienie pary: >760 mmHg ( 25 °C)
• Próba: ≥99%
• temp. samozapłonu: 662 °F
• granice wybuchowości: 27 %
• tw: −24.8 °C (lit.)
• mp: −141 °C (lit.)
• grupa funkcyjna: ether
• ciąg SMILES: COC
• InChI: 1S/C2H6O/c1-3-2/h1-2H3
• Klucz InChI: LCGLNKUTAGEVQW-UHFFFAOYSA-N

Opis

Opis ogólny

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.

Zastosowanie

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.

Dimethyl ether (DME) can be used as a precursor to synthesize methyl acetate, oligomeric oxymethylene ethers (OMEs), polyoxymethylene dimethyl ethers (DMMx) and light olefins.

Opakowanie

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:

• Aldrich^® Sure/Pac^™ station for liquefied gases Z566446
• PTFE Sealing tape Z104388 or Z221880
• Brass hose adapter Z146811
• Aldrich^® mini gas regulator Z513539

Informacje prawne

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

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

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Informacja o środkach bezpieczeństwa

• Piktogramy: GHS02,GHS04
• Hasło ostrzegawcze: Danger
• Zwroty wskazujące rodzaj zagrożenia: H220,H280
• Zwroty wskazujące środki ostrożności: P210 - P377 - P381 - P410 + P403
• Klasyfikacja zagrożeń: Flam. Gas 1A - Press. Gas Liquefied gas
• Kod klasy składowania: 2A - Gases
• Klasa zagrożenia wodnego (WGK): WGK 1
• Temperatura zapłonu (°F): -41.8 °F - closed cup
• Temperatura zapłonu (°C): -41 °C - closed cup
• Środki ochrony indywidualnej: Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)