Dimethyl ether | Business & Products | Mitsubishi Gas Chemical Company, Inc.

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id="contentsArea" class="contentsInner setLocalMenu"> <div id="contents"> <section> <h1 class="ttl-h1">Dimethyl ether</h1> <div class="tableArea01"> <table class="tableType01" summary="Detail"> <tbody> <tr> <th scope="row" width="145">Abbreviation</th> <td>DME</td> </tr> <tr> <th scope="row" width="145">Plant</th> <td>Niigata</td> </tr> <tr> <th scope="row" width="145">Main Applications</th> <td>Aerosol propellant</td> </tr> <tr> <th scope="row" width="145">Existing Chemical Substance No.</th> <td>（2）-360</td> </tr> </tbody> </table> </div> </section> <section> <h2 class="ttl-h2">Properties</h2> <div class="tableArea01"> <table class="tableType01" summary="Properties "> <tbody> <tr> <th scope="row" width="145">Chemical Formula</th> <td>CH<sub>3</sub>OCH<sub>3</sub></td> </tr> <tr> <th scope="row" width="145">Molecular Weight</th> <td>46.07</td> </tr> <tr> <th scope="row" width="145">Appearance</th> <td>Colorless gas</td> </tr> <tr> <th scope="row" width="145">Odor</th> <td>Slightly sweet smell</td> </tr> <tr> <th scope="row" width="145">Specific Gravity (25℃/4℃)</th> <td>0.661 (20℃ liquid)</td> </tr> <tr> <th scope="row" width="145">Boiling Point (℃ 760mmHg)</th> <td>-24.9</td> </tr> <tr> <th scope="row" width="145">Freezing Point (℃ 760mmHg)</th> <td>-141.5</td> </tr> <tr> <th scope="row" width="145">Flash Point (℃ Tagliabue (Tag) Closed Cup)</th> <td>-41.1</td> </tr> <tr> <th scope="row" width="145">Ignition Temperature (℃)</th> <td>350</td> </tr> <tr> <th scope="row" width="145">Flammability Limits (vol%)</th> <td>3.4～27</td> </tr> <tr> <th scope="row" width="145">Vapour Pressure (mmHg 25℃)</th> <td>1,930（0℃）<br>3,800（20.8℃）</td> </tr> <tr> <th scope="row" width="145">Viscosity (CP 25℃)</th> <td>No data</td> </tr> <tr> <th scope="row" width="145">Solubility</th> <td>7.0g/100g of water (18℃)<br>35wt% (24℃ 5 atmospheric pressure)</td> </tr> <tr> <th scope="row" width="145">Stability&<br>Reactivity</th> <td>Thermally stable under inert gas atmosphere even under high temperatures of 400℃. Also stable in neutral and diluted acidic and alcaline solutions.</td> </tr> </tbody> </table> </div> </section> <section> <h2 class="ttl-h2">Applicable Laws</h2> <div class="tableArea01"> <table class="tableType01" summary="Applicable Laws"> <tbody> <tr> <th scope="row" width="145">Industrial Safety and Health Law</th> <td>Flammable gas</td> </tr> <tr> <th scope="row" width="145">High Pressure Gas</th> <td>High pressure gas, flammable gas, liquefied gas</td> </tr> <tr> <th scope="row" width="145">Fire Service Law</th> <td>－</td> </tr> <tr> <th scope="row" width="145">Poisonous and Deleterious Substances Control Law</th> <td>－</td> </tr> <tr> <th scope="row" width="145">Law on the Prevention of Marine Pollution and Maritime Disaster</th> <td>－</td> </tr> <tr> <th scope="row" width="145">Ship Safety Law</th> <td>Hazardous material, high pressure gas</td> </tr> <tr> <th scope="row" width="145">Civil Aeronautics Law</th> <td>Explosives, high pressure gas</td> </tr> <tr> <th scope="row" width="145">Other Major Applicable Laws</th> <td>Cosmetic Quality Standard<br>(Standards on Cosmetics Raw Materials)</td> </tr> </tbody> </table> </div> </section> <section> <h2 class="ttl-h2">Classification of Hazard</h2> <div class="tableArea01"> <table class="tableType01" summary="Classification of Hazard "> <tbody> <tr> <th scope="row" width="145">Classification</th> <td>High pressure gas, flammable gas</td> </tr> <tr> <th scope="row" width="145">Hazardous</th> <td>High pressure liquefied gas and flammable</td> </tr> <tr> <th scope="row" width="145">Harmful</th> <td>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.</td> </tr> </tbody> </table> </div> </section> <section> <h2 class="ttl-h2">Product Standard</h2> <div class="tableArea01"> <table class="tableType01" summary="Product Standard "> <tbody> <tr> <th scope="row" width="145">Purity (wt%)</th> <td>99.9 or greater</td> </tr> <tr> <th scope="row" width="145">Carbon Dioxide (wt%)</th> <td>0.1 or less</td> </tr> <tr> <th scope="row" width="145">Methyl formate (wt%)</th> <td>0.01 or less</td> </tr> <tr> <th scope="row" width="145">Methanol (wt%)</th> <td>0.01 or less</td> </tr> <tr> <th scope="row" width="145">Water Content (wt%)</th> <td>0.002 or less</td> </tr> <tr> <th scope="row" width="145">Vapour Pressure (MPa)</th> <td>0.41±0.02（20℃）</td> </tr> <tr> <th scope="row" width="145">Specific Gravity (20/4℃)</th> <td>0.67±0.01</td> </tr> </tbody> </table> </div>  <div class="contArea01 mb30 cf"> <p><img class="imgborder" src="/eng/products/nc/img/07_ph01.jpg" alt="Photo: Transport tank container" width="210" height="158"></p> </div> </section> <section><section> <div class="productsInquiry_btn"> <a href="/eng/inquiry/products/?pname=Dimethyl+ether&div=Green+Energy+%26+Chemicals+Business+Sector%EF%BC%8FC1+Chemicals+Division">Inquiries Concerning<br class"sp-dsp-none"> 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