Octadecyl Trimethyl Ammonium Chloride (OTAC), known by its CAS number 112-03-8, is a quaternary ammonium compound celebrated for its exceptional surfactant properties. This cationic molecule is a critical ingredient for formulators across a spectrum of industries, from personal care to asphalt modification. As a leading specialty chemical manufacturer, understanding the intrinsic properties and industrial impact of OTAC is fundamental to its effective application and supply.

At its core, OTAC is characterized by its amphiphilic nature, possessing a hydrophilic quaternary ammonium head and a long hydrophobic octadecyl tail. This structure allows it to effectively reduce surface tension, acting as an emulsifier, wetting agent, and dispersant. Its cationic charge is key to its performance in applications where adhesion to negatively charged surfaces is required, such as in textile softening and hair conditioning.

The chemical stability of OTAC, including its resistance to heat, light, and moderate pH variations, makes it a robust choice for demanding formulations. Its solubility in water and alcohol, coupled with its compatibility with non-ionic and other cationic surfactants, further enhances its versatility. This broad compatibility allows formulators to integrate OTAC seamlessly into complex product matrices.

The industrial significance of OTAC is vast. In the textile sector, it is prized as a fabric softener and antistatic agent. The cosmetics industry relies on it for its conditioning effects in hair care products. The construction sector utilizes its emulsifying power in asphalt applications, improving durability and application. Furthermore, its bactericidal properties make it valuable in disinfectants and water treatment. For businesses looking to buy essential chemical intermediates, OTAC is a compound of high strategic importance.

Procurement professionals and chemists seeking to leverage the benefits of OTAC should prioritize sourcing from experienced manufacturers. A reliable supplier in China can offer competitive pricing and consistent product quality, ensuring that your manufacturing processes are supported by a dependable supply of this vital ingredient. Whether you are aiming to produce softer fabrics, more effective hair conditioners, or stable asphalt emulsions, understanding and sourcing high-quality OTAC is a key step towards achieving your product development goals.