295299

二甲醚

≥99%

• 同義詞: 甲醚
• 線性公式: (CH₃)₂O
• CAS號碼: 115-10-6
• 分子量：: 46.07
• Beilstein: 1730743
• EC號碼: 204-065-8
• MDL號碼: MFCD00008494
• 分類程式碼代碼: 12142100
• PubChem物質ID: 24857771
• NACRES: NA.22

屬性

• 蒸汽密度: 1.62 (vs air)
• 蒸汽壓力: >760 mmHg ( 25 °C)
• 化驗: ≥99%
• 自燃溫度: 662 °F
• expl. lim.: 27 %
• bp: −24.8 °C (lit.)
• mp: −141 °C (lit.)
• 官能基: ether
• SMILES 字串: COC
• InChI: 1S/C2H6O/c1-3-2/h1-2H3
• InChI 密鑰: LCGLNKUTAGEVQW-UHFFFAOYSA-N

描述

一般說明

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.

應用

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.

包裝

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

法律資訊

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

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

安全資訊

• 象形圖: GHS02,GHS04
• 訊號詞: Danger
• 危險聲明: H220,H280
• 防範說明: P210 - P377 - P381 - P410 + P403
• 危險分類: Flam. Gas 1A - Press. Gas Liquefied gas
• 儲存類別代碼: 2A - Gases
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: -41.8 °F - closed cup
• 閃點（°C）: -41 °C - closed cup
• 個人防護裝備: Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)