C16H35N (99%), oleic acid C18H34O2 (98%), maleic anhydride C4H2O3 (97%), 1-octanol C8H17O (98%), nano-SiO2, hydroquinone (HQ) C6H6O2, p-toluene sulfonic acid (p-TSA) C7H8O3S, benzoyl
peroxide C14H10O4 (99%), dioctyl
sodium sulfosuccinate C20H37NaO7S,
and sodium hydroxide anhydrous NaOH were all purchased from the Sigma-Aldrich
company. The solvents xylene, ethanol, and toluene were bought from
Adwic Company. Co-operation Company provided the diesel fuel (Egypt),
and its properties are listed in