Description 1,4-Dioxane, often simply called dioxane because the 1,2 and 1,3 isomers of dioxane are rare, is a heterocyclic organic compound. It is a colorless liquid with a faint sweet odor similar to that of diethyl ether. It is classified as an ether. Dioxane is used mainly as a stabilizer for the solvent trichloroethane. It is an occasionally used solvent for a variety of practical applications as well as in the laboratory. Basic Info Chemical Name 1,4-Dioxane Synonyms DIOXANE, 1,4-; para-dioxane; Diethylene oxide; 1,4-Dioxane; 1,4-Diethylene Dioxide; Expand CAS No. 123-91-1 Molecular Formula C4H8O2 Molecular Weight 88.10510 PSA 18.46000 LogP 0.03320 Properties Appearance & Physical State Colorless clear liquid Density 1.033 Boiling Point 101ºC Melting Point 12ºC Flash Point 12ºC Refractive Index 1.4205-1.422 Water Solubility SOLUBLE Stability Stable. Incompatible with oxidizing agents, oxygen, halogens, reducing agents, moisture. Highly flammable - note wide explosive range. May form explosive peroxides in storage (rate of formation increased by heating, evaporation or exposure to light). Storage Condition Flammables area Vapor Density 3 (vs air) Vapor Pressure 27 mm Hg ( 20 °C) |