Overview
Octanol, also known as 1-octanol or caprylic alcohol, is a straight-chain fatty alcohol with eight carbon atoms. It is a colorless, slightly viscous liquid with a mild, characteristic odor. Octanol is primarily derived from natural sources such as coconut oil or produced synthetically via the hydroformylation of heptene. Due to its versatile chemical properties, octanol is widely used in industrial applications. It serves as a solvent, a precursor for plasticizers, and an intermediate in the synthesis of esters, which are used in perfumes and flavors. Its high boiling point and low volatility make it suitable for various chemical processes.
Physical and Chemical Properties
Octanol is a hydrophobic compound with limited solubility in water but excellent miscibility with most organic solvents. Its density is approximately 0.83 g/cm³, and it has a melting point of -16 °C and a boiling point of 195 °C. The alcohol group in octanol makes it reactive in esterification and etherification reactions. Its long hydrocarbon chain contributes to its mild odor and low volatility, making it useful in applications where slow evaporation is desired. Octanol is also known for its role in the octanol-water partition coefficient (log P), a measure of hydrophobicity used in pharmaceutical and environmental studies.
Main Applications
Octanol is widely used in the chemical industry as a solvent for resins, waxes, and oils. Its ability to dissolve a variety of substances makes it valuable in coatings, inks, and adhesives. In the production of plasticizers, octanol is esterified with phthalic anhydride to produce dioctyl phthalate (DOP), a common plasticizer for PVC. It is also used as an intermediate in the synthesis of fragrances and flavors, where its mild odor is advantageous. Additionally, octanol serves as a standard in environmental and pharmaceutical research due to its role in measuring hydrophobicity.
Safety and Storage
Octanol is generally considered low in toxicity, but prolonged exposure can cause skin and eye irritation. Proper personal protective equipment (PPE), such as gloves and goggles, should be used when handling this chemical. Storage conditions for octanol should include a cool, dry, and well-ventilated area, away from heat sources and open flames. Containers should be tightly sealed to prevent moisture absorption and contamination. In case of spills, absorbent materials like sand or vermiculite should be used, and the area should be ventilated to avoid vapor accumulation.
B2B Procurement Guide
When procuring octanol, buyers should prioritize suppliers with a proven track record of reliability and quality. Key factors to consider include purity levels (typically 98-99%), packaging options (drums, totes, or bulk), and compliance with industry standards such as REACH or FDA for specific applications. Price negotiations should account for volume discounts, with prices commonly ranging from $5 to $10 per kg. Buyers should also verify the supplier's ability to provide technical support, safety data sheets (SDS), and timely delivery. Long-term contracts may offer cost savings for bulk purchases.
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