Soaps and Detergents | Classification and Application of ...
A unique combination of essential oils in soap can enrich the quality of soap. Drawbacks of soap: A serious drawback of a soap is the tendency of its carboxylate ion to form insoluble salts with Ca 2+ and Mg 2+ ions when mixed in hard water. These insoluble salts get deposited on clothes and the soap loses its cleansing action.