Presentation
The exact symptoms of a chemical burn depend on the chemical involved. Symptoms include itching, bleaching or darkening of skin, burning sensations, trouble breathing, coughing blood and/or tissue necrosis. Common sources of chemical burns include sulfuric acid (H2SO4), hydrochloric acid (HCl), lye (NaOH), lime (CaO), and silver nitrate (AgNO3). Chemical burns may occur through direct contact on body surfaces including skin and eyes, inhalation, and ingestion. Lipophilic substances that diffuse efficiently in human tissue, e.g. hydrofluoric acid, sulfur mustard and dimethyl sulfate, may not react immediately, but produce the burns and inflammation hours after the contact. Chemical fabrication, mining, medicine, and related professional fields are examples of occupations where chemical burns may occur.
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