Abstract
Experiments have been carried out to determine the solubility of ethane in aqueous solutions of sodium dodecyl sulfate containing sodium chloride. Addition of successive increments of NaCl to a micellar solution of sodium dodecyl sulfate (SDS) causes a small increase in gas solubility at low salt concentrations (<0.1 m). However, at higher salt concentrations NaCl suppresses the solubility of ethane. These salt effects are found to be independent of surfactant concentration. The variation in ethane solubility with salt concentration is interpreted as reflecting the combined effects of an increase in micellar SDS at the expense of the monomeric form which occurs at low salt concentrations and the salting out of ethane from the external aqueous phase. The intramicellar solubility of ethane is not affected by added salt, even in solutions having very high NaCl concentrations (>0.6 m) which are thought to contain SDS in the form of large aggregates which are thermodynamically unstable with respect to the hydrated solid state.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
