I2

Definition

Iodine (I2) refers to the element iodine in its diatomic form. It is a purple-black solid that sublimes into purple vapor when heated. Iodine has various applications ranging from medicine to photography.

Related terms

Sublimation:

Sublimation is the process by which a solid directly converts into vapor without passing through the liquid phase.

Halogen Displacement Reaction: A halogen displacement reaction occurs when a more reactive halogen displaces a less reactive halogen from its compound.

Tincture of Iodine: Tincture of iodine is an antiseptic solution containing iodine dissolved in alcohol or another solvent. It is used for disinfection purposes.