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Browsing Thesis & Dissertations by Advisor ": Prof. Dr. Ajaya Bhattarai"

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    Study on effect of sodium stearate surfactant in mixed solvent media
    (2024) Yadav, Brahma Deo; : Prof. Dr. Ajaya Bhattarai
    The specific conductivity of sodium stearate(SS) surfactant in double distilled water, different percentage of methanol are studied by conductometric method at three temperatures (298.15, 308. 15, 318.15) K. The Critical Micelle Concentration (CMC) of sodium Stearate is determined at all temperatures. CMC is increased with an increase in temperature of the solution. the CMC of SS in distilled water at (298.15, 308. 15, 318.15) K. is 0.0008M, 0.0010M, 0.0020M was obtained . The specific conductance is decreased with increase in percentage of methanol in the solution. The corrosion rate of surfactant is observed. FESEM image, EDX graph shows the purity of the sample. The percentage of elements present in sodium stearate surfactant is explained by EDX data. The percentage of C, O, Na, sodium stearate surfactant is observed 77, 14.2, 2.5 percent by weight.