Sodium Hydroxide

**Caustic soda** is a name commonly used for **sodium hydroxide (NaOH)** or **potassium hydroxide (KOH)**. It is a highly **corrosive (burning)** chemical. In industry, it is widely used in soap and detergent production, paper, textiles, and cleaning products. In homes, it is particularly known as **drain cleaner**. Caustic substances have the ability to break down fats and proteins. However, it can cause **serious burns** if it comes into contact with the skin or eyes, so protective gloves and goggles must be worn when using it.