What is a Ammonium Iodide?

Ammonium iodide, with the chemical formula NH₄I, is an inorganic compound composed of ammonium ions (NH₄⁺) and iodide ions (I⁻). It appears as a white crystalline solid that is highly soluble in water. Over time, especially in humid conditions, it decomposes and releases iodine, leading to a yellow-brown discoloration. Ammonium iodide is mainly used in photographic chemicals, pharmaceutical intermediates, and as a reagent in organic synthesis. It also serves as a source of iodine in various chemical reactions. It should be stored in a cool, dry, and tightly sealed container to prevent decomposition.

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