Sulfur-containing compounds are chemical substances that include sulfur atoms in their molecular structure. These compounds can be found in various forms, such as gases, liquids, or solids, and are important in many biological and industrial processes. Common examples include sulfur dioxide, hydrogen sulfide, and sulfates. These compounds play crucial roles in nature and industry. For instance, they are essential for the formation of proteins and enzymes in living organisms. In industry, sulfur-containing compounds are used in the production of fertilizers, pharmaceuticals, and even in the manufacturing of sulfuric acid, one of the most widely used chemicals globally.