Cycloheptanol is the organic compound with the chemical formula or . It is a colorless oily liquid with mild, sweet alcoholic odor. The molecule is related to 7-membered cycloheptane ring in which one of its hydrogen atoms is replaced by a hydroxyl group.
Synthesis Cycloheptanol can be synthesized by reduction of cycloheptanone.
Properties Cycloheptanol molecule consists of a large nonpolar hydrophobic 7-membered hydrocarbon ring () (which is contributing to cycloheptanol's practical insolubility in water), with a polar hydrophilic hydroxyl group () attached to it.
Solid cycloheptanol shows polymorphism at low temperatures. Four phases are discovered: phase I, II, III and IV. Phases I and II are orientationally disordered. Phases III and IV are orthorhombic. The phase transition temperatures are: from liquid phase to phase I (melting point), from phase I to phase II , from phase II to phase III .
Uses It is used in organic synthesis, as a solvent and as an intermediate in the production of various chemicals.
Safety Cycloheptanol is a flammable chemical, difficult to ignite. Vapors can form explosive mixtures with air on intense heating, and are 3.94 times heavier than air, thus, they may spread along floors. It reacts violently with strong oxidising agents and acid anhydrides. When on fire, it emits toxic gases of carbon monoxide and carbon dioxide. Keep away from open flames, hot surfaces and sources of ignition. Precautionary measures against static discharge must be taken.
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