Natriumjodidi

Natriumjodidi, with the chemical formula NaI, is an ionic compound formed between sodium and iodine. It is a white crystalline solid that is highly soluble in water and also soluble in alcohols. In its pure form, it is odorless and has a slightly bitter taste. Natriumjodidi is hygroscopic, meaning it readily absorbs moisture from the atmosphere, which can lead to caking.

This compound has several important applications. In medicine, it is used as a source of iodine for treating iodine deficiency disorders. It is also employed in diagnostic imaging as a contrast agent in some medical procedures. In photography, natriumjodidi was historically used in the development of photographic films. Furthermore, it finds use in certain industrial processes and as a laboratory reagent.

Natriumjodidi is typically produced by reacting sodium hydroxide or sodium carbonate with hydroiodic acid. It can also be synthesized by the reaction of sodium metal with iodine. When exposed to air and light, it can slowly oxidize, forming free iodine, which gives it a yellowish tint. Therefore, it is often stored in airtight, light-resistant containers.