kobolttikloridi

Kobolttikloridi, also known as cobalt(II) chloride, is an inorganic chemical compound with the formula CoCl2. It is a crystalline solid that exists in several hydrated forms, with the most common being the hexahydrate, CoCl2·6H2O. In its anhydrous form, kobolttikloridi is blue, while the hexahydrate is red. This color change upon hydration and dehydration is a notable characteristic.

Kobolttikloridi is soluble in water, alcohol, and ether. It is typically produced by reacting cobalt oxides or carbonates with hydrochloric acid. The compound has a variety of applications, though its use is often regulated due to cobalt's toxicity. Historically, it was used as a color indicator in desiccants, changing color as moisture is absorbed. It has also found use in sympathetic inks, as a feed additive in trace amounts, and in some pyrotechnic formulations to impart a blue color.

In scientific research, kobolttikloridi serves as a precursor for other cobalt compounds and is used in studies related to cobalt chemistry and its biological effects. Exposure to kobolttikloridi can cause skin irritation and allergic reactions. Ingestion or inhalation can lead to more severe health problems. Therefore, appropriate safety precautions are necessary when handling this chemical.