Lye facts for kids

Lye is a very strong chemical. It is known as a "caustic" substance. This means it can burn or corrode things it touches. Lye is usually a liquid solution. It is made by dissolving certain chemicals in water. The two main types of lye are sodium hydroxide and potassium hydroxide. People use lye for many things. It helps make soap and even some glass.

What is Lye?

Lye is a powerful chemical. It is very corrosive. This means it can cause damage. It can burn skin or eyes. It can also dissolve many materials. Lye is typically a solution. This is a mixture where one substance is dissolved in another. Think of sugar dissolving in water. Lye is made by dissolving special compounds in water.

Types of Lye

There are two main kinds of lye. They are named after the chemicals they contain.

• Sodium hydroxide is also called soda lye. It is the most common type. It is often used in homes.
• Potassium hydroxide is also called potash lye. It is less common. It is used for special purposes.

Both types of lye are very strong. They must be handled with great care.

How Lye is Used

Lye has many important uses. It is a key ingredient in making soap. When lye mixes with fats or oils, it creates soap. This process is called saponification.

Lye is also used to make some types of glass. It helps to dissolve materials. This makes them easier to work with. You might also find lye in some drain cleaners. It helps to break down clogs in pipes.

Safety First!

Lye is a dangerous chemical. It can cause serious burns. It can also harm your eyes. You should never touch lye directly. Always wear safety goggles and gloves. If you are ever near lye, make sure an adult is present. They can help keep you safe.

Images for kids

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  Pellets of potash lye (potassium hydroxide)

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  Pellets of soda lye (sodium hydroxide)

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  Bottles of alkaline drain cleaners containing lye