Sinkkisulfaatti

Sinkkisulfaatti, or copper(II) sulfate, is a chemical compound with the formula CuSO4, most commonly encountered as the pentahydrate CuSO4·5H2O. It forms vivid blue crystals and is highly soluble in water. In solution it provides Cu2+ ions, which give it its characteristic color and reactivity.

Production and composition: Industrially, sinkkisulfaatti is produced by treating copper-containing materials with sulfuric acid to form copper sulfate, which is then crystallized as the pentahydrate. The pentahydrate loses water on heating to yield anhydrous CuSO4.

Properties and reactions: Copper sulfate is a salt of a weak acid and a strong acid, forming acidic solutions. It is widely used as a source of copper ions in laboratory and industrial processes. It dissolves readily in water and forms blue solutions; it can react with sulfides, hydroxides, and carbonates under appropriate conditions.

Applications: It is used as a fungicide and algaecide in horticulture and gardening, for example in grape and potato treatments. It serves as a chemical root killer in some drain-cleaning products. In industry and laboratories, it is used in electroplating baths and as a general Cu2+ reagent, including educational demonstrations and crystal-growing experiments.

Safety and environmental considerations: Copper sulfate is toxic if swallowed and can irritate the skin and eyes. It is harmful to aquatic life with lasting effects, so spills should be contained and releases to waterways avoided. Proper handling, protective equipment, and adherence to local regulations are advised when using sinkkisulfaatti.