Sorbitan sesquioleate (CAS 8007-43-0)

Sorbitan sesquioleate is a nonionic surfactant derived from the dehydration of sorbitol and primarily used in scientific studies related to surface chemistry and colloidal stability. In research, it serves as an emulsifying and dispersing agent, facilitating the formation and stabilization of emulsions and dispersions in a variety of experimental setups. This compound is particularly valuable for its ability to modify the surface properties of liquids, enhancing the miscibility of otherwise immiscible phases. Sorbitan sesquioleate′s role in research extends to studies on the kinetics of emulsion formation and the thermodynamic properties of colloids. By altering the interfacial tension between liquid phases, it provides insights into the molecular interactions that govern phase behavior and stability in colloidal systems. Researchers utilize this chemical to investigate the effects of surfactants on emulsion polymerization, drug delivery systems, and biochemical assays where precise control of the interface is required. The mechanism by which sorbitan sesquioleate operates—reducing surface tension and providing steric stabilization—makes it a crucial component in the formulation of stable emulsions and fine dispersions, contributing to advancements in both fundamental and applied surface chemistry.