Question

Which materials are used to cleansing of soap?

Answer 1

Answer:

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Explanation:

Soaps used for cleaning purpose are sodium or potassium salts of long chain fatty acids. They cannot be used in hard water or acidic solution as they precipitate out. They are biodegradable and hence they do not cause water pollution. e.g., stearic, oleic and palmitic acids.

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Answer 2

Explanation:

Hot caustic alkali solution, such as caustic soda (sodium hydroxide), acts on natural fats or oils, such as tallow or vegetable oil, to produce sodium fatty acid salt (soap) and glycerin (or glycerol). This saponification reaction is the basis for all soapmaking.