| Specifications | Items | Specifications | | Superior | Grade I | | Purity | ＞99.99 % (w/w) | ＞99.9 % (w/w) | | Methanol | <30ppm | <500ppm | | Moisture | < 50 ppm(w/w) | < 100 ppm(w/w) | | Low-boiling-point substance | < 20 ppm (v/v) | < 200 ppm (v/v) | | Appearance | Colorless Liquefied Gas | Colorless Liquefied Gas | | Odor | slight Ethereal | slight Ethereal | Applications:
Solvent use - Aerosol Propellant -Blowing Agent Gas -Refrigerant Benefits: Environment friendly
Physical properties:
| Component | Chemical name | Molecular formula | Weight% | | DME | Dimethyl Ether | CH3-O-CH3 | 100 | | Molecular weight | 46.07 | | Flash point | -41℃（Air Density=1.2936Kg/m3） | | Boiling point | -24.9 ℃(-12.6°F) | | Freezing Point | -141.5℃(-222.7°F) | | Critical temperature | 127℃ | | Auto ignition temperature | 235℃ | | Critical pressure | 5.3558MPa | | Odor | Slight ethereal | | Form | Liquefied gas | | Color | Clear, colorless | | Heat of vaporization at -20℃ | 410KJ/kg | | Vapor Pressure at 20 ℃ | 0.51MPa | | Vapor Density at 25 ℃ (Air = 1) | 1.61 | | Liquid Density at 20 ℃ | 0.67g/cm3 | | Explosion limit | 3.4~17vol% | | Ozone Depletion Potential(ODP) | 0 | | Global Warming Potential(GWP) 100yr | 0 | | Flammability at 1 atm. and 18 ℃ | Flammable |
Shipping information:
Hazard Class: 2.1 Flammable Gas UN 1033
Packing:
-ISO TANK 12700kgs-13900kgs -Steel Cylinders 460kg/800L ; 530KG/926L, 14cylinders/20”D
For any other information, please send email to cindy.hu@guomao-cool.com. | 
