Ammonium Iodide, Reagent A.C.S.

Assay (as NH3): ≥99.0% NH4I
MAXIMUM ALLOWABLE 
Insoluble matter: 0.005%
Residue after ignition: 0.05%
Chloride and bromide (as CL): 0.005%
Phosphate (PO4): 0.001%
Sulfate (SO4): 0.05%
Barium (Ba): 0.002%
Heavy metals (as Pb): 0.001%
Iron (Fe): 5 ppm
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