Dipropylene glycol is an odorless, colorless, water-soluble, and hygroscopic liquid with a sweet taste at room temperature. It is soluble in water and toluene, miscible with methanol and diethyl ether, and has a pungently sweet taste. It is non-corrosive, exhibits minimal skin irritation, and has very low toxicity. It is flammable in the presence of open flames or high heat and can form explosive mixtures with air. It is suitable for odor-sensitive applications such as flavors, fragrances, and cosmetics.