Dependence of the surfactant solutions surface tension on the concentration and on the temperature
N Sibiryakov
Abstract
Abstract This paper presents the dependence of the surface tension on the surfactant concentration and on the temperature for anionic cetyltrimethylammonium bromide (CTAB) with a concentration of 1 mmol/L and two-ionic lauryl hydroxysultaine (LHS) with a concentration of 2.8 mmol/L. At a low concentration of the surfactant, the surface tension drops sharply at a certain temperature, and at a high concentration it changes slightly, much slower than surface tension of the pure water. Surface tension rapidly drops because micelles in the bulk become unstable and surfactant particles relocate to the interface.
Topics & Concepts
Pulmonary surfactantSurface tensionBromideCritical micelle concentrationChemistryIonic bondingMicelleMaximum bubble pressure methodChemical engineeringChromatographyInorganic chemistryThermodynamicsAqueous solutionOrganic chemistryIonPhysicsEngineeringBiochemistrySurfactants and Colloidal SystemsFluid Dynamics and Thin FilmsInnovative Microfluidic and Catalytic Techniques Innovation