Chemical burning, also known as caustic or alkali burning, is a type of tissue injury caused by contact with a corrosive substance. Common corrosive substances include acids, alkalis, and certain solvents. These substances can cause severe damage to the skin, eyes, and internal organs.

Chemical burns can occur in a variety of settings, including:

* Industrial accidents: Workers who handle corrosive substances may be at risk of accidental exposure.

* Laboratory accidents: Scientists and researchers who work with corrosive substances may also be at risk of exposure.

* Household accidents: Corrosive substances are often found in household cleaning products, such as bleach and drain cleaners. Children are particularly vulnerable to chemical burns from household products.

* Intentional acts: Chemical burns can also be caused intentionally, such as in cases of assault or terrorism.

The severity of a chemical burn depends on several factors, including the type of corrosive substance, the concentration of the substance, the duration of exposure, and the location of the burn.

Common symptoms of chemical burns include:

* Skin: Redness, swelling, pain, blisters, and tissue necrosis

* Eyes: Pain, redness, swelling, vision loss

* Respiratory tract: Coughing, choking, difficulty breathing

* Gastrointestinal tract: Nausea, vomiting, abdominal pain, diarrhea

* Systemic effects: Shock, kidney failure, liver failure, death

Chemical burns are a medical emergency. If you come into contact with a corrosive substance, flush the affected area with water for at least 15 minutes and seek medical attention immediately.