1-Octanol

1-Octanol is a straight-chain primary alcohol with eight carbon atoms and the formula C₈H₁₈O. Its hydrophobic chain and hydroxyl group give it both water-repelling and water-attracting character.

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Alcohol: An organic compound in which a hydroxyl group is bonded to a saturated carbon atom. 1-Octanol is a primary alcohol, with its hydroxyl group attached at the end of the carbon chain.
Liquid–liquid extraction: A separation method that distributes compounds between two immiscible liquid phases. 1-Octanol can act as an organic phase for extracting compounds from aqueous mixtures.
Butan-1-ol: A four-carbon primary alcohol with the formula C₄H₁₀O. Its shorter chain makes it more water-soluble and less hydrophobic than 1-octanol.
2-Ethylhexanol: A branched eight-carbon primary alcohol used widely in plasticizer production. Its branching differentiates its packing and physical properties from straight-chain 1-octanol.
Hydrogen bonding: An attraction involving hydrogen covalently bonded to an electronegative atom and another electronegative atom. Its hydroxyl group forms hydrogen bonds, influencing boiling point and interactions with water.
LogP: The base-ten logarithm of a neutral compound's octanol–water partition coefficient. Octanol-based partitioning provides a standard experimental route to estimate this lipophilicity measure.
Octan-2-ol: An eight-carbon secondary alcohol with its hydroxyl group on the second carbon. It shares 1-octanol's formula and chain length but differs in hydroxyl position.
Octane: A saturated hydrocarbon with eight carbon atoms and the formula C₈H₁₈. Replacing 1-octanol's hydroxyl group with hydrogen yields this nonpolar hydrocarbon.
Hydrophobic effect: The tendency of nonpolar substances to aggregate in water, driven largely by water's molecular organization. The eight-carbon chain resists water, shaping 1-octanol's limited aqueous solubility.
Cosmetics: Products applied to the body for cleansing, appearance, or fragrance. 1-Octanol is used as a solvent and intermediate in some cosmetic ingredient formulations.