Dimethyl ether

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)
refractive index :1.2984
Flash point :-41°C
solubility :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.
Odor :Chloroform-like; sweet.
explosive limit :27%
Odor Threshold :500ppm
Water Solubility :soluble
Merck :6071
BRN :1730743
Dielectric constant :5.0（25℃）
Stability :Stable. Extremely flammable. Note low flash point. May form explosive mixtures with air. May form peroxides during prolonged storage.
LogP :0.07 at 25℃
CAS DataBase Reference :115-10-6(CAS DataBase Reference)
NIST Chemistry Reference :Dimethyl ether(115-10-6)
EPA Substance Registry System :Dimethyl ether (115-10-6)

Symbol(GHS):
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.