Ammonium Iodide Formula

Ammonium Iodide is a chemical compound with a formula NH4I and can be manufactured in a lab by treating ammonium hydroxide with hydrogen iodide gas. It is easily soluble in water and ethanol. In moist air, it decomposes and turns yellow with the liberation of iodine. In this short piece of article, let us learn more about the ammonium iodide formula, its chemical structure along with its properties and uses.

Ammonium Iodide Properties

Properties of Ammonium Iodide


Ammonium Iodide


White crystalline powder

Chemical Formula


Melting Point

551 °C

Boiling Point

405 °C

Molar Mass

144.94 g/mol


2.51 g/cm³

Solubility in Water


Ammonium Iodide Chemical Structure

Ammonium Iodide Formula

Ammonium Iodide Uses

  • Used in photographic chemicals
  • Used in medicines

Stay tuned to BYJU’s to learn more formulas of different chemical compounds.

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