Liquid Detergent is a cleaning solution that contains sodium salt of sulphonic acid as the active ingredient. The sodium salt is made by reacting sulphonic acid with sodium hydroxide (caustic soda). This product contains this active ingredient and other substances such as sodium lauryl sulphate, sodium tripolyphosphate, sodium carbonate, fragrance and pigment which all work together to increase its effectiveness as a cleaning solution. Follow the simple step-by-step description of the method and make your own superb liquid detergent.