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
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