Detergents and Soaps
The chemical reaction that produces soap is called saponification. It occurs when a hot caustic alkali solution, such as caustic soda (sodium hydroxide), acts on natural fats or oils to produce a smooth, semisolid, fatty acid salt (soap) and glycerin, or glycerol. There are many different procedures and techniques of making soap. Three main ones include the boiling process, the continuous process and the cold procedure, The boiling process is one specific procedure in which soap can easily be made at home by boiling water with animal fat or vegetable oils and wood ash. As the water boils, the fat molecules are broken down into fatty acids. Saponification occurs when these fatty acids react with potassium carbonate from the ash to form soap. Continuous soap making process is another common process in which the fat is split into fatty acids and glycerin in a tall column called a hydrolyser. Molten fat is continuously pumped in at the bottom of the hydrolyser and is split into fatty acids by water that is continuously pumped in at the top at high temperature and pressure. The fatty acids are taken from the top of the hydrolyser and the glycerin is drawn off a
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Approximate Word count = 2043
Approximate Pages = 8 (250 words per page double spaced)
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