cáustica

Caustica is a term derived from the Greek word "kaustikos," meaning burning or corrosive. In chemistry, it refers to a substance that is corrosive, particularly to living tissue. Strong bases, such as sodium hydroxide (NaOH) and potassium hydroxide (KOH), are often referred to as caustics due to their ability to cause chemical burns. These substances react with organic matter, breaking down fats and proteins, which leads to tissue damage. Caustics are used in various industrial processes, including soap making, cleaning products, and chemical manufacturing. Handling caustics requires extreme caution, and appropriate personal protective equipment like gloves and eye protection is essential to prevent injury. Exposure can cause severe pain, blistering, and permanent scarring. In a broader sense, the term "caustic" can also be used metaphorically to describe something sharp, sarcastic, or bitter in tone or language.