Spectroscopic Studies of Sodium Dodecyl Sulfate and Sudan Red III Associations in Solutions

• DOI: 10.14504/ajr.4.4.3
• Publication Date: 2017-06-14T03:02:09Z
• Authors: Nong Wang; Hong Lin; Min Zhao; Rong Xiao
• Keywords: Sodium dodecyl sulfate

The absorption spectrum of Sudan Red III (SR) in aqueous solution and a series alcohol solutions containing sodium dodecyl sulfate (SDS) surfactant was determined by UV-Vis spectrophotometry. After establishing appropriate association models to analyze the experimental data, constants K m SR SDS various were determined. All greater than those water. ethanol had largest constant, indicating that addition small amount enhanced between SDS. Association thermodynamics function Δ r G values also calculated from constants.