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Dimethyl ether

CAS No. 115-10-6
Chemical Name: Dimethyl ether
Synonyms: RE170;dymela;RE-170;Dymel A;demeond;(CH3)2O;woodether;Wood ether;ether,methyl;METHYL OXIDE
CBNumber: CB8765901
Molecular Formula: C2H6O
Formula Weight: 46.07
MOL File: 115-10-6.mol
Dimethyl ether Property
Melting point : −141 °C(lit.)
Boiling point : −24.8 °C(lit.)
density : 1.617
vapor density : 1.62 (vs air)
vapor pressure : >760 mm Hg ( 25 °C)
Fp : -41°C
explosive limit: 27%
Water Solubility : soluble
Merck : 6071
Stability:: Stable. Extremely flammable. Note low flash point. May form explosive mixtures with air. May form peroxides during prolonged storage.
CAS DataBase Reference: 115-10-6(CAS DataBase Reference)
NIST Chemistry Reference: Dimethyl ether(115-10-6)
EPA Substance Registry System: Methane, oxybis-(115-10-6)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes : F+
Risk Statements : 12
Safety Statements : 9-16-33
RIDADR : UN 1033 2.1
WGK Germany : 1
RTECS : PM4780000
F : 4.5-31
HazardClass : 2.1
Hazardous Substances Data: 115-10-6(Hazardous Substances Data)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H220 Extremely flammable gas Flammable gases Category 1 Danger P210, P377, P381, P403
H280 Contains gas under pressure; may explode if heated Gases under pressure Compressed gas
Liquefied gas
Dissolved gas
Warning P410+P403
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P377 Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
P381 Eliminate all ignition sources if safe to do so.
P410+P403 Protect from sunlight. Store in a well-ventilated place.

Dimethyl ether Chemical Properties,Usage,Production

Chemical Properties
colourless gas
ChEBI: An ether in which the oxygen atom is connected to two methyl groups.
General Description
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.
Air & Water Reactions
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].
Reactivity Profile
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].
Health Hazard
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.
Fire Hazard
Behavior in Fire: Containers may explode. Vapors are heavier than air and may travel long distance to a source of ignition and flash back.
Dimethyl ether Preparation Products And Raw materials
Raw materials
Ferric chloride Iodomethane
Preparation Products
3-AMINOBIPHENYL cis-Anethol 3'-Amino-4'-methoxyacetanilide 2,5-Diaminoanisole sulfate 4-Bromoanisole N-Methylaniline N-(4-METHOXY-3-NITROPHENYL)ACETAMIDE 2-Fluoro-4-hydroxybenzonitrile Anisole 4-Iodoanisole 3-Methoxy-18-methylestra-2,5(10)dien-17-one 17-ethylene ketal FLUCYTHRINATE 3-PYRID-2-YLBENZOIC ACID 5-METHYLFURAN-2-BORONIC ACID
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TCI Japan 03-3668-0489
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