Kobberklorid

Kobberklorid is the common name for copper chloride, a chemical compound with the formula CuCl₂. It is an ionic compound formed from copper and chlorine. Copper can exist in multiple oxidation states, and in kobberklorid, copper is in the +2 oxidation state.

Kobberklorid typically appears as a blue or blue-green crystalline solid. It is soluble in water, forming a blue solution. The anhydrous form is yellow-brown. It is often encountered as the dihydrate, CuCl₂·2H₂O, which has a brighter blue color.

This compound has a variety of industrial and laboratory applications. It is used as a catalyst in organic chemistry, particularly in oxidation reactions and in the synthesis of various organic compounds. It also finds use as a pigment, contributing to blue and green colors in paints, ceramics, and glass. In pyrotechnics, kobberklorid can be used to produce blue flames.

Historically, copper chlorides have been known and used for centuries, though their precise chemical nature was not understood until later. The specific properties and uses of kobberklorid continue to be relevant in modern chemistry and industry. It is important to handle kobberklorid with care, as it can be an irritant.