No one can make soap without the chemical reaction of saponification, and in order for this chemical reaction to take place, caustic soda dissolved in water is required. Once the oils are added, the molecules combine and the chemical reaction begins.
It is a natural chemical reaction that occurs when triglycerides in oils react with caustic soda to form the reaction products. The end result is a bar consisting of soap, glycerine and water. Most of the water evaporates as the soap condenses. Caustic soda is neutralised during the chemical reaction of saponification and is not present in the final product – soap.
Caustic soda
11
Jan
