1-Heptadecanol

1-Heptadecanol, also known as heptadecyl alcohol, is a long-chain fatty alcohol with the chemical formula C₁₇H₃₆O. It is a white, waxy solid at room temperature and is used in various industrial and cosmetic applications.

Structure and Properties

1-Heptadecanol is a saturated fatty alcohol, meaning it contains no double bonds between carbon atoms. Its structure consists of a long hydrocarbon chain of 17 carbon atoms, terminating in a hydroxyl group (-OH). This structure gives it both hydrophobic and hydrophilic properties, making it useful as an emulsifying agent.

Physical Properties

• Molecular Weight: 256.47 g/mol
• Melting Point: Approximately 58-60 °C
• Boiling Point: Approximately 330 °C
• Density: 0.83 g/cm³

Chemical Properties

1-Heptadecanol is relatively inert, but it can undergo typical alcohol reactions such as esterification and oxidation. It is soluble in organic solvents but has limited solubility in water due to its long hydrophobic chain.

Applications

1-Heptadecanol is used in a variety of applications due to its surfactant properties:

• Cosmetics: It is used as an emollient, thickener, and emulsifier in creams and lotions.
• Industrial: It serves as a lubricant and a component in the manufacture of surfactants and detergents.
• Pharmaceuticals: It is used in the formulation of certain drug delivery systems.

Production

1-Heptadecanol can be produced through the hydrogenation of heptadecanoic acid or by the reduction of heptadecanal. It can also be derived from natural sources such as plant oils and animal fats.

Safety and Environmental Impact

1-Heptadecanol is considered to be of low toxicity. It is biodegradable and does not pose significant environmental hazards. However, as with all chemicals, it should be handled with care to avoid unnecessary exposure.

Also see

• Fatty alcohol
• Emulsifier
• Surfactant
• Heptadecanoic acid