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The sodium salt of a carboxylic(fatty) acid.

In modern terms it is made by boiling

sodium hydroxide(lye) and palmitic acid together.

The result is sodium palmate (soap).

The palmate anion acts as the fats dirt absorber.

The sodium cation allows it to dissolve in water.

Manufacturers will then put in 'cream's and perfume, to make it 'smooth' and smell nice.

Ordinary soap does NOT lather in salt(sea) water, owing to the 'common ion' effect (sodium cation).

So a soap that lathers in salt water is made with potassium hydroxide. and palmitic acid.

Other organic acids and animal fats canbe used in soap making.

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lenpollock

Lvl 16
1mo ago

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