The effect of sodium dodecyl sulfate on the rate methyl oleate oxidation in aqueous emulsion

Return to list of articles
Doklady Bashkirskogo Universiteta. 2019. Volume 4. No. 6. pp. 592-596.

Authors

Semikasheva O. V.
Bashkir State Pedagogical University n. a. M. Akmulla
3 Oktyabrskoj revoljucii Street, 450008 Ufa, Republic of Bashkortostan, Russia
Nasibullina R. A.
Ufa Institute of Chemistry, Ufa Federal Research Centre of the Russian Academy of Sciences
69 Oktyabrya Avenue, 450054 Ufa, Republic of Bashkortostan, Russia
Yakupova L. R.*
Ufa Institute of Chemistry, Ufa Federal Research Centre of the Russian Academy of Sciences
69 Oktyabrya Avenue, 450054 Ufa, Republic of Bashkortostan, Russia
Murzagulova E. I.
Bashkir State University
32 Zaki Validi Street, 450076 Ufa, Republic of Bashkortostan, Russia
Safiullin R. L.
Ufa Institute of Chemistry, Ufa Federal Research Centre of the Russian Academy of Sciences
69 Oktyabrya Avenue, 450054 Ufa, Republic of Bashkortostan, Russia

Abstract

The dependence of the oleic acid methyl ester (MO) oxidation rate in an aqueous medium on the sodium dodecyl sulfate (DDS) concentration (surfactant) was studied.The oxidation oleic acid methyl ester rate was measured by the oxygen uptake was using a manometric differential setup. The reaction was carry out at a temperature of 333 K. It is shown that with an increase in surfactant concentration, the parameter k 2(2 k 6)-0.5 decreases and reaches a minimum at 333 K. It is shown that with the surfactant concentration increasing the oxidation parameter of methyl oleate decreases and reaches a minimum at [DDS] ≥ 0.5 mol/l. In the range of surfactant concentration 0.5÷0.8 mol/l the value of k 2(2 k 6)-0.5 does not change and is (1.7±0.1) × 10-3л0.5моль-0.5с-0.5.

Keywords

  • oleic acid methyl ester
  • radical chain oxidation
  • peroxyl radical
  • reaction rate constant
  • sodium dodecyl sulfate
Return to list of articles