Dimethyl ether
| Abbreviation |
DME |
| Plant |
Niigata |
| Main Applications |
Aerosol propellant |
| Existing Chemical Substance No. |
(2)-360 |
Properties
| Chemical Formula |
CH3OCH3 |
| Molecular Weight |
46.07 |
| Appearance |
Colorless gas |
| Odor |
Slightly sweet smell |
| Specific Gravity (25℃/4℃) |
0.661 (20℃ liquid) |
| Boiling Point (℃ 760mmHg) |
-24.9 |
| Freezing Point (℃ 760mmHg) |
-141.5 |
| Flash Point (℃ Tagliabue (Tag) Closed Cup) |
-41.1 |
| Ignition Temperature (℃) |
350 |
| Flammability Limits (vol%) |
3.4~27 |
| Vapour Pressure (mmHg 25℃) |
1,930 (0℃)
3,800 (20.8℃) |
| Viscosity (CP 25℃) |
No data |
| Solubility |
7.0g/100g of water (18℃)
35wt% (24℃ 5 atmospheric pressure) |
| Stability & Reactivity |
Thermally stable under inert gas atmosphere even under high temperatures
of 400℃. Also stable in neutral and diluted acidic and alcaline solutions. |
Applicable Laws
| Industrial Safety and Health Law |
Flammable gas |
| High Pressure Gas |
High pressure gas, flammable gas, liquefied gas |
| Fire Service Law |
- |
| Poisonous and Deleterious Substances Control Law |
- |
| Law on the Prevention of Marine Pollution and Maritime Disaster |
- |
| Ship Safety Law |
Hazardous material, high pressure gas |
| Civil Aeronautics Law |
Explosives, high pressure gas |
| Other Major Applicable Laws |
Cosmetic Quality Standard
(Standards on Cosmetics Raw Materials) |
Classification of Hazard
| Classification |
High pressure gas, flammable gas |
| Hazardous |
High pressure liquefied gas and flammable |
| Harmful |
Very weak narcotic effect; discomfort under exposure to high concentration,
e.g. 7.5%; without apparent physical change; direct contact with
liquefied gas will cause skin lesions or frost bites. |
Product Standard
| Purity (wt%) |
99.9 or greater |
| Carbon Dioxide (wt%) |
0.1 or less |
| Methyl formate (wt%) |
0.01 or less |
| Methanol (wt%) |
0.01 or less |
| Water Content (wt%) |
0.002 or less |
| Vapour Pressure (MPa) |
0.41±0.02 (20℃) |
| Specific Gravity (20/4℃) |
0.67±0.01 |
Inquiries
Natural Gas Chemicals Company
Organic Chemicals Division
TEL: +81-3-3283-4747
FAX: +81-3-3287-0837
Inquiries Form
