What is the physical (or chemical) mechanism by which soap (liquid and/or bar) cleans you?

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I always assumed it has something to do with the foam, but I’m not quite sure what.

I also assume that shampoo and toothpaste work in a similar way, but with different chemicals that provide specific benefits to hair and teeth respectively.

In: Physics

5 Answers

Anonymous 0 Comments

The process is called ‘emulsion’ I believe? Or soap is an ‘emulsifier’. I know it contains molecules attracted to both oil and water. Dirt = oil, so the soap attaches to the oil and washes away with water.

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