What makes soap foamy?

is it an ingredient? a process? temperature? pressure?





and does it make soap more expensive?





THANKS alot!What makes soap foamy?
A chemical called sodium laureth sulfate is a major chemical found in shampoo, hand soap and most detergents. It is a foaming agent that helps bind the other detergents in the soap together. It is also inexpensive to produce and safe to use in bath products.What makes soap foamy?
Other than the soap itself, I would say that it is due to the unique ';V'; structure of water, and hydrogen bonding.





Soap itself has a hydrophobic and hydrophilic end, one side interacting with water molecules, while the other shunning water. This will cause a separation of the water molecules.





The hydrophobic molecules that manages to reach the surface would squeeze their way between the surface water molecules, pushing their hydrophobic ends out of the water. This separates the water molecules from each other. Since the surface tension forces become smaller as the distance between water molecules increases, the intervening soap molecules decrease the surface tension.





Nah, the price of soap is ultimately determined by the manufacturer, and of course the marketing, etc. employed.