The Hydroiodic Acid formula, also referred to as the Hydrogen iodide formula is discussed in this article. It is the aqueous solution of hydrogen iodide. When hydrogen iodide gas gets dissolved in water Hydroiodic Acid is obtained. In its anhydrous form is a molecule made up of a hydrogen atom and an iodine atom. The chemical formula of Hydroiodic Acid is HI.
It is a colorless liquid, with an acrid odor. which is odorless and has a cooling, saline pungent taste. Commercially it will be prepared by reacting iodine with hydrazine which provides hydrogen iodide and nitrogen gas.