lye


lye

Alkaline (see alkali) liquid extracted by soaking wood ashes in water, commonly used for washing and in making soap. More generally, lye is any strong alkaline solution or solid, such as sodium hydroxide (caustic soda) or potassium hydroxide (caustic potash).

This entry comes from Encyclopædia Britannica Concise.
For the full entry on lye, visit Britannica.com.

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