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03101

Sigma-Aldrich

Ammonium iodide

puriss., ≥99%

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About This Item

Linear Formula:
NH4I
CAS Number:
Molecular Weight:
144.94
EC Number:
MDL number:
UNSPSC Code:
12352302
eCl@ss:
38050607
PubChem Substance ID:

vapor pressure

1 mmHg ( 210.9 °C)

grade

puriss.

assay

≥99%

impurities

≤0.001% heavy metals (as Pb)
≤0.01% thiosulfate (S2O3)

ign. residue

≤0.1% (as SO4)

loss

≤1% loss on drying, 105 °C

pH

4.5-6.5 (20 °C, 5%)

anion traces

chloride, bromide (as Cl)-: ≤200 mg/kg
iodate (IO3-): ≤100 mg/kg
sulfate (SO42-): ≤100 mg/kg

cation traces

As: ≤5 mg/kg
Fe: ≤10 mg/kg

SMILES string

N.I

InChI

1S/HI.H3N/h1H;1H3

InChI key

UKFWSNCTAHXBQN-UHFFFAOYSA-N

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General description

Thin films of ammonium iodide were studied by far IR spectra from −170°C to room temperature. Laser excited Raman spectra of polycrystalline NH4I was also recorded.[1]

Application

Ammonium iodide (NH4I) may be used in the following studies:
  • Cyanation protocol of aryl boronic acids, boronates and borate salts. It has a dual role in the protocol to provide iodide and nitrogen atom of the cyano moiety.[2]
  • Synthesis of vinyl methyl sulfones.[3]
  • As iodine source in the iodination of aromatic compounds.[4]

pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

STOT RE 1 Oral

target_organs

Thyroid

Storage Class

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Simple and regioselective oxyiodination of aromatic compounds with ammonium iodide and Oxone.
Mohan KVVK, et al.
Tetrahedron Letters, 45(43), 8015-8018 (2004)
Xiaofang Gao et al.
Chemical communications (Cambridge, England), 51(1), 210-212 (2014-11-20)
A novel ammonium iodide-induced sulfonylation of alkenes with DMSO and water toward the synthesis of vinyl methyl sulfones is described. The process proceeded smoothly under metal-free conditions with high stereoselectivity and good functional group tolerance. The reaction mechanism was revealed
Low-Frequency Vibrations in Ammonium Iodide and Ammonium Bromide.
Durig JR and Antion DJ.
J. Chem. Phys. , 51(9), 3639-3647 (1969)
Jinho Kim et al.
Journal of the American Chemical Society, 134(5), 2528-2531 (2012-01-28)
The cyanation of aromatic boronic acids, boronate esters, and borate salts was developed under copper-mediated oxidative conditions using ammonium iodide and DMF as the source of nitrogen and carbon atom of the cyano unit, respectively. The procedure was successfully extended
Junseok Lee et al.
Chemosphere, 142, 72-76 (2015-06-29)
A novel approach using wavelength dispersive X-ray fluorescence (WDXRF) spectrometry combined with an activated carbon (AC) disk was developed for the determination of total iodine concentrations in water samples. Dissolved iodine species (i.e., I(-) and IO3(-)) in water samples were

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