Undecanol

Chemical compound

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Chemical structure of undecanol

Undecanol, also known as 1-undecanol, is a fatty alcohol with the chemical formula C₁₁H₂₄O. It is a colorless, water-insoluble liquid with a characteristic odor. Undecanol is used in the manufacture of perfumes, flavorings, and as an intermediate in the production of other chemicals.

Chemical Properties

Undecanol is a saturated alcohol with a long carbon chain, consisting of eleven carbon atoms. Its molecular structure can be represented as CH₃(CH₂)₉CH₂OH. The presence of the hydroxyl group (-OH) at the end of the carbon chain classifies it as a primary alcohol.

Physical Properties

Undecanol is a viscous liquid at room temperature. It has a melting point of approximately 19°C and a boiling point of about 243°C. The compound is only slightly soluble in water but is miscible with most organic solvents.

Production

Undecanol can be produced through the hydrogenation of undecylenic acid, which is derived from castor oil. Another method involves the Ziegler process, where ethylene is oligomerized to form higher alkanes, which are then oxidized to produce the corresponding alcohols.

Applications

Undecanol is primarily used in the fragrance industry due to its pleasant odor. It serves as a component in the formulation of perfumes and as a flavoring agent in the food industry. Additionally, it is used as an intermediate in the synthesis of plasticizers, lubricants, and surfactants.

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3D model of undecanol

Safety and Handling

Undecanol should be handled with care, as it can cause skin and eye irritation. It is recommended to use protective equipment such as gloves and goggles when handling the substance. In case of contact with skin or eyes, the affected area should be rinsed thoroughly with water.

Related Pages

• Fatty alcohol
• Perfume
• Hydrogenation
• Ziegler process