The Origin of Soap
Each year, 10 billion pounds of soap are produced. How does soap work?
How Does Soap Work?
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Key Facts In This Video
Soap production and use dates about to about 2800 B.C. in ancient Babylonia. 00:36
Soap is actually a combination of salts and fatty acids. 01:05
In order for "antibacterial" soap to be effective, it must sit on your hands a full two minutes. 02:53
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