Hexadecyl trimethyl ammonium bromide (CTAB) is a compound that bridges the gap between fundamental chemistry and practical applications across various industries. As a cationic surfactant, its unique molecular structure dictates its behavior in solution and its efficacy in diverse fields, from cosmetics to advanced material science. For professionals seeking to understand and utilize this versatile chemical, delving into its scientific underpinnings and sourcing strategies is crucial. This article provides a comprehensive look at CTAB, covering its properties, key applications, and guidance on sourcing from dependable manufacturers.

Understanding the Chemistry of CTAB

CTAB, with the CAS number 57-09-0 and molecular formula C19H42BrN, is a quaternary ammonium salt characterized by a 16-carbon alkyl chain (hexadecyl group) attached to a trimethylammonium cation, balanced by a bromide anion. This structure gives it amphiphilic properties, meaning it has both a hydrophilic (water-loving) head and a hydrophobic (oil-loving) tail. In aqueous solutions, CTAB molecules self-assemble into micelles above a certain concentration, known as the critical micelle concentration (CMC). This micelle formation is fundamental to its functions as a surfactant, emulsifier, and solubilizer. Its physical appearance is typically a white to almost white powder, soluble in water and certain alcohols, and it exhibits a pH range of 5.0-7.0 in a 0.1M aqueous solution.

Key Applications Driven by CTAB's Properties

The scientific properties of CTAB translate into a wide array of practical applications. Incosmetics, its cationic nature makes it an excellent hair conditioner, providing smoothing and anti-static effects. It also serves as an antiseptic agent. Inmolecular biology, CTAB is a vital component in buffer solutions for DNA extraction, particularly from challenging plant samples, due to its ability to lyse cells and precipitate polysaccharides and proteins. Inmaterials science, CTAB is extensively used as a structure-directing agent and stabilizer in the synthesis of nanoparticles, such as gold nanorods and mesoporous silica, influencing their size, shape, and aggregation. It also acts as a phase-transfer catalyst in various chemical synthesis processes, improving reaction efficiency.

Sourcing High-Quality CTAB: The Supplier's Perspective

For researchers and manufacturers, securing high-quality CTAB is paramount for achieving reliable and reproducible results. As a leading manufacturer and supplier of Hexadecyl trimethyl ammonium bromide in China, we emphasize purity and consistency. Our product, meeting standards of ≥99.0% assay, is ideal for sensitive applications where impurities could compromise outcomes. When considering where to buy CTAB, look for suppliers who provide detailed specifications, safety data sheets (SDS), and certificates of analysis (CoA). Our commitment is to provide transparent information and support to our clients, ensuring they receive the best material for their specific needs. We offer competitive Hexadecyl trimethyl ammonium bromide pricing for bulk purchases, making advanced research and product development more accessible.

Conclusion

Hexadecyl trimethyl ammonium bromide is a testament to the power of chemical structure dictating function. Its well-defined properties as a cationic surfactant, solubilizer, and templating agent make it an indispensable chemical across multiple scientific and industrial domains. By understanding its science and partnering with a trusted supplier like us, you can effectively leverage CTAB's capabilities to drive innovation and achieve superior results in your projects. Contact us to explore our range and learn more about our commitment to quality and service.