Soaps Can Be Unusual Too
Soap is chemical compound used for washing, bathing and cleaning. Soaps are alkaline salts of fatty acids. They are made from animal fats or vegetable oils in process called Saponification. They are very good tool for cleaning and removing stains, due to specific structure of their molecules. Soap molecules have a hydrophilic portion, which dissolves in water and the hydrophobic part, which dissolves non-polar molecules of fat. Fats that have been retained in the skin or fabric, such as dirt, with the help of soap begin to dissolve in water due to the formation of micelles. Hydrophobic portion dissolves grease from dirt, allowing their removal in water. Man uses soap for at least four thousand years. The earliest recorded evidence of the making of soap like materials dates back to around 2800 BC in Ancient Babylon. Ancient Egyptians combined animal and vegetable oils with alkaline salts to create soap like substance that was used for bathing and in the preparation of wool for weaving.