Caustic

Caustic refers to any substance that can burn, corrode, or destroy organic tissue by chemical action. The term is often used interchangeably with corrosive, although caustic specifically refers to substances that cause chemical burns. Caustic substances are typically strong acids or bases.

Properties

Caustic substances are characterized by their ability to cause severe damage upon contact with living tissues. They can lead to chemical burns, which are injuries caused by exposure to chemicals. The severity of the burn depends on the concentration of the caustic substance and the duration of exposure.

Common Caustic Substances

Some common caustic substances include:

• Sodium hydroxide (NaOH), also known as lye or caustic soda
• Potassium hydroxide (KOH), also known as caustic potash
• Hydrochloric acid (HCl)
• Sulfuric acid (H2SO4)
• Nitric acid (HNO3)

Uses

Caustic substances have a wide range of applications in various industries:

• In the chemical industry, they are used in the manufacture of soaps, detergents, and other cleaning agents.
• In the food industry, caustic substances are used for cleaning and sanitizing equipment.
• In the paper industry, they are used in the pulping process to break down wood fibers.
• In the textile industry, caustic substances are used in the dyeing and finishing processes.

Safety and Handling

Due to their highly reactive nature, caustic substances must be handled with extreme care. Proper personal protective equipment (PPE) such as gloves, goggles, and protective clothing should be worn when handling these substances. In case of exposure, it is crucial to follow appropriate first aid measures, such as rinsing the affected area with plenty of water and seeking medical attention.

Related Pages

• Chemical burn
• Corrosive substance
• Sodium hydroxide
• Potassium hydroxide
• Hydrochloric acid
• Sulfuric acid
• Nitric acid
• Personal protective equipment