“…Olive oil [4], palm kernel [5], tallow [6], lard or fish oil [7], coconut oil [8], castor oil [9], and jatropha oil, are wide spread since it is easy to attain surface active agents through simple reactions [9,10]. In addition to cleaning and home applications of nonionic surfactants, they play an effective role as cutting fluid additives [11], emulsifiers [12], demulsifiers [13], and corrosion inhibitors [14][15][16]. In this study, we prepared four nonionic surfactants by reacting propylene oxide with oleic acid, linoleic acid, and fatty acids obtained from jatropha oil after alkaline hydrolysis.…”