Perfluorohexylethanol
Overview
Perfluorohexylethanol is a fluorinated alcohol widely used in industrial applications due to its unique hydrophobic and oleophobic characteristics. It serves as a critical intermediate in the synthesis of surfactants and coatings, particularly for imparting water- and oil-repellent properties to textiles and materials. The compound's stability and low surface tension make it valuable in specialty chemical formulations. First developed during the mid-20th century, fluorinated alcohols like perfluorohexylethanol gained prominence in high-performance materials. Its molecular structure, featuring a perfluorinated carbon chain, ensures resistance to both water and oils, making it indispensable in sectors such as aerospace, electronics, and protective apparel.
Physical and Chemical Properties
Perfluorohexylethanol is a colorless to pale yellow liquid with a density of approximately 1.7 g/cm³. It has a boiling point around 160-165°C and is insoluble in water but miscible with common organic solvents like ethanol and acetone. Its fluorinated backbone provides exceptional chemical inertness and thermal stability. The compound's low surface tension (typically <20 mN/m) and dual hydrophobic/oleophobic behavior stem from the strong carbon-fluorine bonds. These properties enable it to reduce interfacial energy in coatings and surfactants, enhancing performance in repellency applications. However, its flammability requires careful handling and storage.
Main Applications
The primary use of perfluorohexylethanol is in the production of fluorinated surfactants and coatings. It is a key ingredient in formulations for water- and oil-resistant textiles, such as outdoor gear and medical fabrics. Additionally, it is employed in electronics for anti-fog coatings and in aerospace for corrosion-resistant treatments. Another significant application is in specialty polymers, where it modifies surface properties to repel contaminants. The compound also serves as an intermediate in synthesizing perfluorinated ethers, used in high-temperature lubricants and firefighting foams. Its versatility makes it a staple in industries demanding durable, low-energy surfaces.
Safety and Storage
Perfluorohexylethanol is a combustible liquid and requires precautions to avoid fire hazards. Storage should be in cool, dry areas away from ignition sources, with containers tightly sealed to prevent evaporation. Incompatible materials include strong oxidizers and acids. Personal protective equipment (PPE) such as nitrile gloves, goggles, and respirators is recommended during handling. Spills should be contained with inert absorbents and disposed of as hazardous waste. Safety data sheets (SDS) must be reviewed prior to use, and local regulations for fluorochemicals should be followed.
B2B Procurement Guide
When sourcing perfluorohexylethanol, prioritize suppliers with ISO or equivalent certifications to ensure quality. Key specifications include purity (≥98%), CAS number verification (647-42-7), and batch consistency. Request technical data sheets and test reports for trace impurities. Bulk purchases (e.g., 25 kg drums) often reduce costs, but evaluate storage capacity due to flammability. Lead times may vary; establish long-term contracts for stable supply. Alternatives like shorter-chain fluorinated alcohols (e.g., perfluorobutanol) may be considered for cost-sensitive applications, though performance trade-offs exist.
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