You won't believe these 10 facts about people. Copper sulfate is a chemical compound which is produced commercially by reacting various copper(II) compounds with sulfuric acid. This compound is used in a wide range of industries, from pyrotechnics to viticulture.hen used in water treatment to remove unwanted algae and other organisms, copper sulfate is typically used in trace amounts, and the water may be filtered or treated to remove the copper sulfate before being released. This compound is also used in chemistry.