Ammonium iodide is an inorganic compound with the formula NH4I. It is a white crystalline powder that is soluble in water and ethanol. Ammonium iodide is an ionic compound, composed of the ammonium cation (NH4+) and the iodide anion (I-).
Ammonium iodide is used in a variety of applications, including:
- As a food additive to prevent iodine deficiency.
- As a reagent in analytical chemistry.
- In the manufacture of pharmaceuticals, dyes, and explosives.
- As a fire suppressant.
- In the production of semiconductors.
- In the treatment of hyperthyroidism.
Ammonium iodide is a relatively safe compound, but it can be harmful if ingested in large amounts. It can also irritate the skin and eyes.
Here are some of the specific properties of ammonium iodide:
- Molecular weight: 149.97 g/mol
- Melting point: 551 °C
- Boiling point: 220 °C
- Density: 2.51 g/cm3
- Solubility in water: 154.2 g/100 mL (0 °C)
- Solubility in ethanol: 100 g/100 mL (20 °C)
Ammonium iodide is a light-sensitive compound and should be stored in a dark place. It is also hygroscopic, meaning it absorbs water from the air.
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