What happens when sulfur mustard meets moisture
Sulfur mustard can react with water in the moist lining of the airways. In a process called hydrolysis—a chemical reaction with water—it breaks down into other compounds, including hydrochloric acid. That acid can add to tissue irritation, but it is not the whole explanation for the damage.
The molecule also attacks cells directly
Sulfur mustard is a reactive chemical that can alter important molecules inside cells. It can attach to DNA and proteins, disrupting the instructions and machinery cells need to function and repair themselves. This chemical attack can injure or kill cells even apart from the acid produced during breakdown.
The distinction matters: the injury is not like an ordinary acid splash, where acidity alone explains the harm. Sulfur mustard can damage tissue both through products formed in contact with water and through its own reactions with cellular material.
Why lung injury can unfold over time
Damage to airway cells can interfere with the lung’s protective lining and trigger inflammation. As injured cells break down and the tissue responds, breathing problems may worsen rather than appearing all at once. The lungs’ moisture helps create conditions for chemical reactions, while the direct cellular damage sets off a broader injury that acid alone cannot explain.
