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Ammonium iodide

Basic information Description References Safety Related Supplier
Ammonium iodide Basic information
Ammonium iodide Chemical Properties
  • Melting point:551 °C (lit.)
  • Boiling point:405°C (estimate)
  • Density 2.51
  • vapor pressure 1 mm Hg ( 210.9 °C)
  • refractive index 1.7031
  • storage temp. Keep in dark place,Inert atmosphere,Room temperature
  • solubility ethanol: slightly soluble(lit.)
  • form Granular
  • pka0.31±0.70(Predicted)
  • Specific Gravity2.514
  • color White to pale yellow
  • OdorOdorless
  • PH Range4.5 - 6.5
  • PH4.5-6.5 (20℃, 5%)
  • Water Solubility Soluble in water, ethanol, methanol, acetone, ammonia and glycerol. Slightly soluble in ether.
  • Sensitive Light Sensitive & Hygroscopic
  • Merck 14,529
  • CAS DataBase Reference12027-06-4(CAS DataBase Reference)
  • NIST Chemistry ReferenceAmmonium iodide(12027-06-4)
  • EPA Substance Registry SystemAmmonium iodide ((NH4)I) (12027-06-4)
Safety Information
Ammonium iodide Usage And Synthesis
  • DescriptionAmmonium iodide (chemical formula:NH4I) is an inorganic compound consisting of ammonium and iodide. It can be prepared by the reaction between hydroiodic acid (or hydrogen iodide gas) with ammonia or ammonia hydroxide. It can be used in photographic chemicals and some medications. It can also be supplemented to many animal feed formulations as a dietary source of Iodine. It can be added to a release agent and being capable of increasing the throughput and success rate due to smoother bead release process, reducing damage to platinum ware due to forced bead release as well as reducing crucible cleaning requirement.
  • References
  • Chemical Propertieswhite to light yellow crystalline powder
  • UsesIt is used in photographic chemicals and some medications. It is a catalyst for dethioacetalization reaction.
  • UsesIn photographic chemicals.
  • UsesWhite crystals made by the action of ammonium hydroxide on hydroiodic acid followed by crystallization. Soluble in water and alcohol, ammonium iodide was used as a halide in collodion formulas, particularly in situations where it was needed for use immediately. Ammonium iodide decomposes quickly when mixed with plain collodion, releasing iodine.
  • DefinitionChEBI: The iodide salt of ammonia.
  • General DescriptionOdorless white solid. Sinks and mixes with water.
  • Air & Water ReactionsWater soluble.
  • Reactivity ProfileAmmonium iodide is light sensitive, becomes yellow or brown on exposure to air and light because of liberation of Iodine [Merck 11th ed. 1989]. Bromine trifluoride reacts explosively with the following ammonium bromide, ammonium chloride, Ammonium iodide [Mellor 2 Supp. 1:165 1956].
  • Health HazardInhalation causes irritation of nose and throat. Contact with eyes causes irritation.
  • Purification MethodsThe iodide crystallises from EtOH on addition of ethyl iodide, and is very hygroscopic. Store it in the dark. Its solubility is 177g in 100g of H2O at 25o. [Schmeisser in Handbook of Preparative Inorganic Chem (Ed. Brauer) Academic Press Vol I p 289-290 1963.]
Ammonium iodide Preparation Products And Raw materials
Ammonium iodide(12027-06-4)Related Product Information
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