1,3 Dioxolane is a colorless and transparent liquid at room temperature. Relative density 1.060. Boiling point (102kPa) 78 ℃. Freezing point -95 ℃. Flash point 1 ℃. Refractive index) 1 4005. The combustion heat is 1.7MJ/mol. The heat of vaporization is 481. 16kj/mol. Generate heat -341 75kj/mol. Boiling with water (azeotropic mixture containing 6% water) 7%), with a boiling point of 70-73 ℃. Soluble in ethanol, ether, acetone, and can be freely miscible with water, and can decolorize bromine water.