Preparation of Sodium Decylsulphonate: Physical Chemical Measurements and Elaboration of a Ternary and a Quaternary Lyotropic Phase Diagram

Abstract

Preparation and analysis of sodium decylsulphonate (SDS_NATE), as well as the elaboration of the ternary and quaternary phases diagram are here presented. The lyomesosphases were studied by: polarizing microscopy, small angle X-ray scattering, densimetry and refratometry. We compare the present results on the SDS_NATE systems to sodium decylsulphate systems and perhaps the most important point is that the SDS_NATE is free of hydrolysis for all mesomorphic purposes, i.e. the SDS_NATE is thermally stable.

Key Words:

• Sodium decylsulphonate
• phase diagrams
• density
• refractometric and X-ray analysis