Sodium stearate (CAS 822-16-2)

Sodium stearate is the sodium salt of stearic acid and is widely used in research for its surfactant properties and as a fundamental component in soap and emulsifier studies. As an anionic surfactant, it plays a crucial role in exploring colloidal chemistry, particularly the micelle formation process and the behavior of amphiphilic molecules in aqueous solutions. Sodium stearate forms micelles in water due to its hydrophilic head and hydrophobic tail, making it instrumental in investigating micelle dynamics, solubilization capacities, and critical micelle concentration. In material science, this compound is essential for understanding the interactions between fatty acid salts and solid surfaces. It is frequently employed as a stabilizing agent in emulsions and dispersions, helping researchers understand the stabilization mechanisms of oil-water interfaces. Additionally, sodium stearate is integral in investigating crystal structures and phase transitions due to its ability to form lamellar structures, aiding studies in solid-state chemistry. Moreover, it serves as a model compound in research on biodegradable surfactants, offering insights into sustainable detergent formulations. This research helps inform the design of surfactants with improved performance while minimizing environmental impact. Overall, sodium stearate is a versatile compound with diverse applications in surfactant science and materials research.