What should we use in soap making process:- a) potassium hydroxide
b) sodium hydroxide (lye)

Explain why it should be used

Well either of them can be used but I would say B). Sodium hydroxide

Explanation:

Potassium Hydroxide is a type of lye specifically used to make liquid soap. It is also known as potash, lye or even KOH. This is the chemical that induces saponification of the fats and oils to create liquid soap. ... Our lye calculator makes this easy and allows you to select liquid soap as an option.

Sodium hydroxide, with the formula NaOH, is usually used in products as a pH adjuster. It's also used in soap-making to turn fats and oils into soap. You can find sodium hydroxide (also called caustic soda or lye) in its pure form in the cleaning aisle, since it's also really handy for clearing up clogged drains.

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