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メチルエーテル

メチルエーテル 化学構造式
115-10-6
CAS番号.
115-10-6
化学名:
メチルエーテル
别名:
メチルエーテル;オキシビスメタン;ジメチルエーテル;ジメチルオキシド;酸化メチル;メチルオキシド;メトキシメタン;CME;ジメチルオキシダン;メタン, オキシビス-;オキシビス[メタン];メチルエテル;DME
英語化学名:
Dimethyl ether
英語别名:
RE170;dymela;RE-170;Dymel A;demeond;(CH3)2O;woodether;Wood ether;FK-506 3'ether,methyl
CBNumber:
CB8765901
化学式:
C2H6O
分子量:
46.07
MOL File:
115-10-6.mol

メチルエーテル 物理性質

融点 :
−141 °C(lit.)
沸点 :
−24.8 °C(lit.)
比重(密度) :
1.617
蒸気密度:
1.62 (vs air)
蒸気圧:
>760 mm Hg ( 25 °C)
屈折率 :
1.2984
闪点 :
-41°C
溶解性:
Soluble in acetone, chloroform, ethanol (95%), ether, and 1 in 3 parts of water. Dimethyl ether is generally miscible with water, nonpolar materials, and some semipolar materials. For pharmaceutical aerosols, ethanol (95%) is the most useful cosolvent. Glycols, oils, and other similar materials exhibit varying degrees of miscibility with dimethyl ether.
臭い (Odor):
Chloroform-like; sweet.
爆発限界(explosive limit):
27%
水溶解度 :
soluble
Merck :
6071
BRN :
1730743
安定性::
Stable. Extremely flammable. Note low flash point. May form explosive mixtures with air. May form peroxides during prolonged storage.
CAS データベース:
115-10-6(CAS DataBase Reference)
NISTの化学物質情報:
Dimethyl ether(115-10-6)
EPAの化学物質情報:
Methane, oxybis-(115-10-6)
安全性情報
  • リスクと安全性に関する声明
  • 危険有害性情報のコード(GHS)
主な危険性  F+
Rフレーズ  12
Sフレーズ  9-16-33
RIDADR  UN 1033 2.1
WGK Germany  1
RTECS 番号 PM4780000
4.5-31
自然発火温度 662 °F
国連危険物分類  2.1
有毒物質データの 115-10-6(Hazardous Substances Data)
化審法 (2)-360
絵表示(GHS)
注意喚起語 Danger
危険有害性情報
コード 危険有害性情報 危険有害性クラス 区分 注意喚起語 シンボル P コード
H220 極めて可燃性/引火性の高いガス 可燃性/引火性ガス 1 危険 P210, P377, P381, P403
H280 加圧ガス;熱すると爆発のおそれ 高圧ガス 高圧ガス
液化ガス
溶解ガス
警告 P410+P403
注意書き
P210 熱/火花/裸火/高温のもののような着火源から遠ざ けること。-禁煙。
P377 漏洩ガス火災の場合:漏えいが安全に停止されな い限り消火しないこと。
P381 安全に対処できるならば着火源を除去すること。
P410+P403 日光から遮断し、換気の良い場所で保管するこ と。

メチルエーテル 価格 もっと(1)

メーカー 製品番号 製品説明 CAS番号 包装 価格 更新時間 購入
東京化成工業 M0224 メチルエーテル >99.0%(GC)
Methyl Ether (in cylinder without valve) [To use this product charged in cylinder, a valve is required which is sold separately (Product Code:V0030)] >99.0%(GC)
115-10-6 100g ¥14100 2018-12-04 購入

メチルエーテル 化学特性,用途語,生産方法

定義

DMEは、ジメチルエーテルの表示名称である。本品は、次の化学式で表されるエーテルである。

用途

冷媒、抽出溶媒

化粧品の成分用途

減粘剤、噴射剤、溶剤

化学的特性

colourless gas

化学的特性

Dimethyl ether is a liquefied gas and exists as a liquid at room temperature when contained under its own vapor pressure, or as a gas when exposed to room temperature and pressure.
It is a clear, colorless, virtually odorless liquid. In high concentrations, the gas has a faint ether-like odor.

使用

Aerosol propellant; alternative diesel fuel; chemical intermediate.

使用

Dimethyl ether is used as a solvent in aerosol formulations.

使用

Methyl ether is used as an aerosol propellantand in refrigeration.

定義

ChEBI: An ether in which the oxygen atom is connected to two methyl groups.

調製方法

Dimethyl ether is prepared by the reaction of bituminous or lignite coals with steam in the presence of a finely divided nickel catalyst. This reaction produces formaldehyde, which is then reduced to methanol and dimethyl ether. Dimethyl ether may also be prepared by the dehydration of methanol.

一般的な説明

Dimethyl ether is a colorless gas with a faint ethereal odor. Dimethyl ether is shipped as a liquefied gas under its vapor pressure. Contact with the liquid can cause frostbite. Dimethyl ether is easily ignited. Its vapors are heavier than air. Any leak can be either liquid or vapor. Dimethyl ether can asphyxiate by the displacement of air. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket.

空気と水の反応

Highly flammable. Upon standing and exposure to air (oxygen) tendency to form explosive peroxides. When ethers containing peroxides are heated (distilled) they can detonate [Lewis, 3rd ed., 1993, p. 854].

反応プロフィール

Dimethyl ether is a colorless, highly flammable gas (b. p. -24° C), slightly toxic. Very dangerous fire and explosion hazard when exposed to flame, sparks, heat or strong oxidizers. Violent reaction with aluminum hydride, lithium aluminum hydride. Upon standing and exposure to air (oxygen) tendency to form explosive peroxides. When ethers containing peroxides are heated (distilled) they can detonate [Lewis, 3rd ed., 1993, p. 854].

健康ハザード

Inhalation produces some anesthesia (but less than that of ethyl ether), blurring of vision, headache, intoxication, loss of consciousness. Liquid or concentrated vapor irritates eyes. Contact of liquid with skin may cause frostbite.

健康ハザード

Methyl ether produced low inhalation toxicity in rats. Caprino and Togna (1975)reported a 30-minute LC50 value of 396 ppmfor rats. In lethal doses it caused sedation,a gradual depression of motor activity, lossof the sighting reflex, hypopnea, coma, anddeath in mice. Exposure to a 40% mixtureof methyl ether in air resulted in an initialslight increase in heart rate in rabbits, whichwas followed by depression of arterial bloodpressure. Death occurred in 45 minutes. Thearterial and venous partial oxygen pressurewas found to decrease while the venous CO2pressure and the blood pH increased
Reuzel et al. (1981) reported that sub chronic inhalation of methyl ether in ratsdid not cause significant adverse effects.No noticeable effect on organ and bodyweights and no treatment-related changeswere observed. In humans, adverse healtheffect from inhalation of this compoundshould be minimal. However, inhalation ofexcessive quantities can produce intoxicationand loss of consciousness.

火災危険

Behavior in Fire: Containers may explode. Vapors are heavier than air and may travel long distance to a source of ignition and flash back.

化学反応性

Reactivity with Water No reaction; Reactivity with Common Materials: No reaction; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

応用例(製薬)

Dimethyl ether may be used as an aerosol propellant for topical aerosol formulations in combination with hydrocarbons and other propellants. Generally, it cannot be used alone as a propellant owing to its high vapor pressure. Dimethyl ether is a good solvent and has the unique property of high water solubility, compared to other propellants. It has frequently been used with aqueous aerosols. A coarse, wet, spray is formed when dimethyl ether is used as a propellant.
Dimethyl ether is also used as a propellant in cosmetics such as hair sprays,and in other aerosol products such as air fresheners and fly sprays.
Dimethyl ether is additionally used as a refrigerant.

安全性プロファイル

Slightly toxic by inhalation. Very dangerous fire hazard when exposed to heat, flame, or oxidzers. Dangerous explosion hazard when exposed to flame, sparks, etc. Violent reaction with AH3 and LiAlH2. Keep in closed container away from heat and open flame. To fight fire, stop flow of gas. When heated to decomposition it emits acrid smoke and irritating fumes.

安全性

Dimethyl ether may be used as a propellant and solvent in topical pharmaceutical aerosols, and is generally regarded as an essentially nontoxic and nonirritant material when used in such applications. However,inhalation of high concentrations of dimethyl ether vapor is harmful. Additionally, skin contact with dimethyl ether liquid may result in freezing of the skin and severe frostbite.
When used in topical formulations, dimethyl ether may exert a chilling effect on the skin, although if it is used as directed the propellant quickly vaporizes and is nonirritating.
LD50 (mouse, inhalation): 386000ppm/30min
LD50 (rat, inhalation): 308g/m3

貯蔵

The liquefied gas is stable when used as a propellant. However, exposure to the air for long periods of time may result in explosive peroxides being slowly formed.
Solutions of liquid dimethyl ether should not be concentrated either by distillation or by evaporation. Dimethyl ether should be stored in tightly closed metal cylinders in a cool, dry place.

純化方法

Dry methyl ether by passing over alumina and then BaO, or over CaH2, followed by fractional distillation at low temperatures. Its solubility is 37mL per mL of H2O at 18o, and it is very soluble

不和合性

Dimethyl ether is an aggressive solvent and may affect the gasket materials used in aerosol packaging. Oxidizing agents, acetic acid, organic acids, and anhydrides should not be used with dimethyl ether.

規制状況(Regulatory Status)

Included in the FDA Inactive Ingredients Database (topical aerosols). Included in nonparenteral medicines licensed in the UK. Included in the Canadian List of Acceptable Non-medicinal Ingredients.

メチルエーテル 上流と下流の製品情報

原材料

準備製品


メチルエーテル 生産企業

Global( 69)Suppliers
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Henan DaKen Chemical CO.,LTD.
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info@dakenchem.com CHINA 21752 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20672 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32447 55
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Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
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Shanghai Hanhong Scientific Co.,Ltd. 021-54306202,021-54308259
+86-21-64545202 info@hanhonggroup.com China 43260 64
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Sinopharm Chemical Reagent Co,Ltd. 86-21-63210123
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Beijing HuaMeiHuLiBiological Chemical 010-56205725;010-86181995
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(CSR Factory)China Skyrun Industrial CO.,ltd Please Email
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115-10-6(メチルエーテル)キーワード:


  • 115-10-6
  • (CH3)2O
  • Methoxymethane
  • Dimethyl ether,Methyl ether
  • Dimethyl Ether Dimethyl Oxide Methyl Oxide
  • Methane, 1,1'-oxybis-
  • DiMethyl ether >=99%
  • demeond
  • Dymel A
  • dymela
  • Ether, dimethyl
  • Ether, methyl
  • ether,dimethyl
  • FK-506 3'
  • Dimethyl ether >=99.9%
  • ether,dimethyl-
  • ether,methyl
  • Methane, oxybis-
  • Methane,oxybis-
  • oxybis(methane)
  • oxybis-methan
  • Oxybismethane
  • oxybis-Methane
  • RE170
  • RE-170
  • Wood ether
  • woodether
  • METHYL OXIDE
  • METHYL ETHER
  • DIMETHYL ETHER
  • DIMETHYL OXIDE
  • メチルエーテル
  • オキシビスメタン
  • ジメチルエーテル
  • ジメチルオキシド
  • 酸化メチル
  • メチルオキシド
  • メトキシメタン
  • CME
  • ジメチルオキシダン
  • メタン, オキシビス-
  • オキシビス[メタン]
  • メチルエテル
  • DME
  • 研究用小型ガスボンベ
  • 有機合成化学
  • エーテル(低沸点)
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