In the realm of industrial chemistry, understanding the fundamental properties and significance of key compounds is crucial for efficient production and innovation. 1-Octanol, also known as n-octanol or caprylic alcohol, identified by the CAS number 111-87-5, is a C8 fatty alcohol that plays a multifaceted role across various sectors. This article delves into its essential properties and highlights its broad industrial importance.

Physical and Chemical Properties

1-Octanol is characterized by its appearance as a clear, colorless liquid. It possesses a distinct odor, often described as mild, floral, slightly citrus, or waxy, which contributes to its utility in fragrance and flavor applications. Its molecular formula is C8H18O, and it has a molecular weight of approximately 130.23 g/mol. Key physical properties include:

  • Boiling Point: Around 196 °C (385 °F) at atmospheric pressure. This relatively high boiling point makes it suitable as a high-boiling solvent.
  • Melting Point: Approximately -15 °C (5 °F), meaning it remains liquid under typical ambient conditions.
  • Density: Around 0.827 g/cm³ at 25 °C, making it less dense than water.
  • Solubility: While sparingly soluble in water, 1-Octanol exhibits good solubility in common organic solvents such as ethanol, ether, and chloroform. This solubility profile is advantageous for its use in various formulations and extraction processes.
  • Flash Point: Typically around 81 °C (178 °F), classifying it as a combustible liquid rather than highly flammable, which aids in safe handling and storage.

Chemically, 1-Octanol is a primary alcohol, meaning the hydroxyl (-OH) group is attached to a primary carbon atom. This functional group makes it reactive in esterification reactions, a property central to its use in synthesizing plasticizers and esters for fragrances. It is generally stable under normal conditions but should be kept away from strong oxidizing agents and strong acids.

Industrial Significance and Applications

The industrial significance of 1-Octanol is substantial and spans multiple sectors:

  • Plasticizer Production: Its primary role is as an intermediate in the synthesis of plasticizers, most notably dioctyl phthalate (DOP). These plasticizers are critical for imparting flexibility to rigid polymers like PVC, enabling their use in a vast array of products.
  • Fragrances and Flavors: The characteristic odor and taste profile of 1-Octanol make it a valuable component in the creation of perfumes, cosmetics, and food flavorings, contributing floral, fruity, and citrus notes.
  • Solvents: Its excellent solvency makes it ideal for use in protective coatings, waxes, oils, and in the extraction of essential oils and pharmaceuticals.
  • Surfactants and Detergents: 1-Octanol serves as a precursor in the production of surfactants, which are essential ingredients in cleaning products and emulsifiers.
  • Lubricant Additives: It is utilized in the formulation of lubricants and other specialty chemicals, contributing to their performance characteristics.
  • Other Applications: It also finds use in defoaming agents, agricultural chemicals, and as a reagent in laboratory research.

For businesses looking to procure high-quality 1-Octanol, working with established 1-Octanol manufacturers, especially those in China, offers distinct advantages. These include competitive pricing, guaranteed purity, and reliable supply chains. When you purchase 1-Octanol, always verify its specifications, including the CAS 111-87-5, and request technical data from your chosen 1-Octanol supplier.

In essence, 1-Octanol is a versatile and indispensable chemical. Its unique combination of physical and chemical properties ensures its continued importance in driving innovation and production across diverse industrial landscapes.