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The Study of the Adsorption of Detergents at a Solution-Air Interface by Radiotracer Method. I. Adsorption Isotherm for the Solution of Sodium Alkyl Sulfates

1958; Oxford University Press; Volume: 31; Issue: 5 Linguagem: Inglês

10.1246/bcsj.31.532

1348-0634

Ryôhei Matuura, Hideo Kimizuka, Shigeru Miyamoto, Ryosuke Shimozawa,

Water Quality Monitoring and Analysis

Abstract The adsorption of the three alkyl sulfates, SDS, STS and SHS, at the solution-air interface has been measured directly by means of the radiotracer method. It has been proved that the surface adsorption increases with increase in the concentration and has a tendency to be saturated at concentrations near cmc for each detergent solution. The results have shown that the adsorption increases with increasing chain length. The Gibbs adsorption equation has been cheked and discussed.