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Having two hydroxyl (-OH) groups joined to neighboring carbon atoms in a linear carbon chain is what distinguishes alkanediols, sometimes referred to as glycols, as a type of organic molecules. Many sectors, such as medicines, cosmetics, polymers, and solvents, have used these compounds for a variety of purposes. An outline of a few typical alkanediols is provided here: (C2H6O2) Ethylene Glycol:Probably the most well-known alkanediol is ethylene glycol. It is a colorless, odorless, sweet-tasting liquid that is frequently added to car cooling systems as an antifreeze agent.Ethylene glycol is used not only as an antifreeze but also as a precursor in the manufacturing of polyester resins and fibers, and in the preparation of deicing agents for runways and airplanes.C3H8O2 is propylene glycol.Another common alkanediol is propylene glycol. It tastes slightly sweet and is a transparent, colorless, and odorless liquid. Propylene glycol is a common humectant used in makeup and personal hygiene products that helps hold onto moisture to keep items from drying out. It serves as a preservative and solvent in culinary and pharmaceutical items as well.Furthermore, propylene glycol is used as a carrier fluid in a variety of applications, including e-cigarette liquids and medications, and as a non-toxic antifreeze in food processing and HVAC systems.C4H10O2 or 1,3-butanediol:The liquid 1,3-butanediol is colorless and has a faintly sweet flavor. It is mostly employed in the manufacturing of polymers, including polyurethanes and polybutylene terephthalate (PBT). Furthermore, 1,3-butanediol is used in the production of a wide range of compounds, such as flavorings, perfumes, and medicines. It is used as a precursor to make γ-butyrolactone, a crucial solvent and intermediary in the synthesis of organic compounds.Because of their many uses and flexible characteristics, these alkanediols are essential to many consumer goods and industrial operations. But, it's crucial to use caution while handling them because some of them can be poisonous if swallowed or breathed in big amounts. Safety precautions should also always be followed when handling and using them.