HCl

Hydrochloric acid (HCl) is a strong, clear, and highly corrosive liquid made from hydrogen and chlorine gases. It’s naturally found in the stomach, where it helps digest food by breaking down proteins. Commercially, it’s used in industries such as cleaning metal surfaces, producing batteries, and in the manufacturing of chemicals. HCl is powerful and can cause burns if it comes into contact with skin or eyes, so it must be handled with proper safety precautions. Despite its dangers, it plays a vital role in many industrial and biological processes.