The manufacture of the soap is one of the most ancient chemical trials of syntesis, but it’isn’t so ancient as that of the production of ethilic alcohol; evidently the men’s aspiration to the cleaning is more recent than their tendency to the drunkenness.
At the Caesar’s time, Teutonis boiled the fat of goat with the potassium hydroxide which was derived from burnt wood. Thanks to this procedure, they effected the same chemical reaction that the modern manufactures of soap apply: the hydrolysis of triglycerides, that produces the salts of carboxylic acids and the glycerine.
Normal soap is usually a mixture of salts of sodium.
The composition and the method of production of the soap can vary: if soap is prepared with olive oil, Marsiglia soap is produced; alcohol can be addedto make the soap transparent; perfumes dyes and germicidies can be asdded too.
Hard soap is produced with sodium salts, on the contrary if potassium salts are used, soft soap is produced.
At the Caesar’s time, Teutonis boiled the fat of goat with the potassium hydroxide which was derived from burnt wood. Thanks to this procedure, they effected the same chemical reaction that the modern manufactures of soap apply: the hydrolysis of triglycerides, that produces the salts of carboxylic acids and the glycerine.
Normal soap is usually a mixture of salts of sodium.
The composition and the method of production of the soap can vary: if soap is prepared with olive oil, Marsiglia soap is produced; alcohol can be addedto make the soap transparent; perfumes dyes and germicidies can be asdded too.
Hard soap is produced with sodium salts, on the contrary if potassium salts are used, soft soap is produced.
By Antonella
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