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  1. Lye - Wikipedia

    Lye is the common name of various alkaline solutions, including soda lye (a solution of sodium hydroxide) and potash lye (a solution of potassium hydroxide). [1][2] Lyes are used as cleaning …

  2. What Does Lye Do? Uses, Dangers, and Safety Tips

    Mar 9, 2026 · Lye is a powerful alkali used in soap, food, and industry—but it can cause serious burns. Here’s how it works and how to handle it safely.

  3. How to Make Lye: Expert Tips - wikiHow

    Feb 19, 2026 · Lye is an alkaline solution that's often used for washing, making soaps, and curing certain foods.

  4. What Is Caustic Soda and Where Can You Get It? - ThoughtCo

    Aug 22, 2024 · Caustic soda, also known as lye, is a chemical used in cleaning products, soap-making, and unclogging drains, but you have to handle it carefully.

  5. What is Lye: A Comprehensive Guide to Types and Uses

    Lye, also known as caustic soda, is a versatile chemical compound with broad significance in various fields and applications. Because of its powerful alkaline characteristics, it is used extensively in …

  6. LYE Definition & Meaning - Merriam-Webster

    The meaning of LYE is a strong alkaline liquor rich in potassium carbonate leached from wood ashes and used especially in making soap and for washing; broadly : a strong alkaline solution (as of …

  7. How to Make Lye From Scratch - The Spruce Crafts

    Nov 13, 2024 · Lye is an alkaline solution that is used to make soaps, as a cleaning product, and sometimes as a solution to cure foods. It is potassium hydroxide, sometimes called caustic soda, and …

  8. Lye | chemical compound | Britannica

    lye, the alkaline liquor obtained by leaching wood ashes with water, commonly used for washing and in soapmaking; more generally, any strong alkaline solution or solid, such as sodium hydroxide or …

  9. What is lye, and why is it used in soap? - The Healthy Porcupine

    Nov 8, 2022 · Lye is a general term for two different alkaline compounds known as Sodium Hydroxide (NaOH) and Potassium Hydroxide (KOH). They are both metal hydroxides and basic alkaline, so …

  10. Where Does Lye Come From? From Wood Ash to Industry

    Jan 7, 2026 · Lye is a powerful chemical compound known for its highly alkaline and corrosive properties. This caustic material breaks down fats, oils, and proteins, making it indispensable in …