WJPPS Citation

Login

Search

News & Updation

  • Updated Version
  • WJPPS introducing updated version of OSTS (online submission and tracking system), which have dedicated control panel for both author and reviewer. Using this control panel author can submit manuscript
  • Call for Paper
    • WJPPS  Invited to submit your valuable manuscripts for Coming Issue.
  • Journal web site support Internet Explorer, Google Chrome, Mozilla Firefox, Opera, Saffari for easy download of article without any trouble.
  •  
  • New Impact Factor
  • WJPPS Impact Factor has been Increased to 8.025 for Year 2024.

  • WJPPS: MARCH ISSUE PUBLISHED
  • March Issue has been successfully launched on 1 March 2024.

  • ICV
  • WJPPS Rank with Index Copernicus Value 84.65 due to high reputation at International Level

  • Scope Indexed
  • WJPPS is indexed in Scope Database based on the recommendation of the Content Selection Committee (CSC).

Abstract

THERMODYNAMIC PARAMETERS OF ANIONIC SURFACTANT-ADDITIVE SYSTEMS AT THE CLOUD POINT

Sandeep Kumar*

ABSTRACT

The thermodynamic parameters of an aqueous anionic surfactant,sodium dodecyl sulfate (NaDS), potassium dodecyl sulphate (KDS), sodium dodecyl benzyl sulphonate (NaDBS) are calculated in the presence of various additives (viz., alcohols, urea and urea derivative) at the cloud point (CP) of the anionic surfactants-additive system. As the clouding components release their solvated water, they separate out from the solution. Therefore, the CP of an amphiphile can be considered the limit of its solubility. The standard Gibbs energy change of solubilization (ΔsG°) for all of the additives is found to be negative. The standard enthalpy change (ΔsH°) and the standard entropy change (TΔsS°) values are found to be negative as well as positive depending upon the type and nature of the additive. The results are explained on the basis of their nature, effect on the water structure, and solubilization of these additives either in the micellar or aqueous phase.

Keywords: surfactant, sodium dodecyl sulfate, sulphonate (NaDBS), micellar.


[Download Article]     [Download Certifiate]

Call for Paper

World Journal of Pharmacy and Pharmaceutical Sciences (WJPPS)
Read More

Online Submission

World Journal of Pharmacy and Pharmaceutical Sciences (WJPPS)
Read More

Email & SMS Alert

World Journal of Pharmacy and Pharmaceutical Sciences (WJPPS)
Read More