Font Size:     

Soaps are the alkali salts of  fatty acids. They are prepared by the saponification process, which is, reacting the oil/fat/fatty acid with alkali (mostly NaOH/KOh) to give the soap. Different oils have different compositions of fatty acids which are responsible for different properties of soaps made from them. In the present work, three different types of fatty acids i.e. Sulphonic Acid, Stearic Acid and the blend of both stearic and Sulphonic Acid (in equal ratios) were taken to make three different types of Soaps having different properties. Different properties of these samples were analyzed to see which liquid soap is the best for daily life usage. Quality and economic aspects were also the factors under consideration. The cleansing power, lathering power, moisture contents, free alkali, total fatty matter, combined alkali, total alkali and yield were the properties that were calculated and compared. From these calculations, we concluded that the best soap prepared was with Sulphonic Acid as it had the best characteristic properties. At the end, cost estimation was also done for all the liquid soap samples to check the economical aspects of Soap produced.