摘要：Surfactant represents one of industrial products from a downstream industry of palm.The development of surfactant has a strong prospect.Surfactant which is widely used in the personal care industry is diethanolamide (DEA).The use of DEA in a personal careproduct is to improve foam and emulsion stabilizer.In this research,we used DEA for 1,2 and 3%.The best result was achieved by using 3% of DEA.The characteristics of transparent soap were total water and evaporable substance content of 10,31%,total fatty acid of 32,84%,unsaponifiables fraction of 1,08%,insoluble matter in alcohol of 1,06%,free alkali of 0,44%,pH of 10,33,foam stability of 51,50%,emulsion stability of 98,37% and hardness of 2,95 mm/sec.
