Ammonium Iodide
Features of Ammonium Iodide
Product Name: Ammonium iodide
Chemical Formula: NH4I
CAS No.: 12027-06-4
Dangerous Grade: NO
Technical Data of Ammonium Iodide
Item
Specification
Result
Appearance
White crystalline powder
White crystalline powder
Assay(NH4I), %
≥99.5
99.7
Insolublity, w/%
≤0.005
0.004
Chloride(Cl), w/%
≤0.02
＜0.02
Iodate and iodine(IO3),w/%
≤0.01
＜0.01
Iron(Fe), %
≤0.0003
＜0.0003
Residue on ignition(as sulfate), w/%
≤0.02
0.01
Conclusion: Pass
Package and Storage:
25kg/drum
Store in a cool, dry place. Keep container closed when not in use
Application /Application Industries:
Pharmaceuticals
Photograph
The chemical formula of ammonium iodide is NH4I. It is colorless crystal or granule at room temperature. Soluble in water, acetic acid, ammonia, soluble in ethanol, acetone; slightly soluble in ether. Sublimation of ammonium iodide after heating, the gas will appear yellow and brown when exposed to light and air.
Neutralization method:
Iodine and red phosphorus are added to a reactor containing water, and the reaction is carried out under stirring. After carefully filtering the reaction solution, distillation is carried out to collect a fraction of 125 to 130 ° C to obtain hydroiodic acid. When the ammonia gas is completely neutralized to a pH of 8 to 9, the ammonia gas is stopped. After filtering the solution, it was vacuum evaporated in a water bath until most of the crystals were precipitated. After cooling, centrifuging, drying at 50-60 ° C, the finished ammonium iodide is obtained.
HI+NH4OH(NH3.H2O)=NH4I+H20
