Potassium iodide, 5G

SKU:
221945-5G
  • $52.40

    • Description

    Potassium iodide

    ACS reagent, ≥99.0%

    Linear Formula:
    KI
    CAS Number:
    7681-11-0
    Molecular Weight:
    166.00
    EC Number:
    231-659-4
    MDL number:
    MFCD00011405
    PubChem Substance ID:
    329752287
    NACRES:
    NA.21

    PROPERTIES

    grade

    ACS reagent

    Quality Level

    200

    vapor pressure

    1 mmHg ( 745 °C)

    assay

    ≥99.0%

    form

    crystals

    impurities

    ≤0.001% N compounds
    ≤0.005% insolubles

    loss

    ≤0.2% loss on drying

    pH

    6.0-9.2 (25 °C, 5%)

    mp

    681 °C (lit.)

    anion traces

    chloride, bromide (as Cl)-: ≤0.01%
    iodate (IO3-): ≤3 ppm
    phosphate (PO43-): ≤0.001%
    sulfate (SO42-): ≤0.005%

    cation traces

    Ba: ≤0.002%
    Ca: ≤0.002%
    Fe: ≤3 ppm
    Mg: ≤0.001%
    Na: ≤0.005%
    heavy metals (as Pb): ≤5 ppm

    SMILES string

    [K+].[I-]

    InChI

    1S/HI.K/h1H;/q;+1/p-1

    InChI key

    NLKNQRATVPKPDG-UHFFFAOYSA-M

    General description

    Potassium iodide is a water soluble inorganic salt that can be prepared by reacting hydrogen iodide and potassium bicarbonate.[1]

    Application

    Potassium iodide may be used as a catalyst in the following processes: Conversion of aromatic primary amines to the corresponding nitro compounds in the presence of tert-butyl hydroperoxide as oxidant.[2] Conversion of aryl halide to aryl iodides in the presence of nickel catalysts.[3] Preparation of sulfonated oxindoles from activated alkenes and sulfonylhydrazides in water and in the presence of 8-crown-6 and tert-butyl hydroperoxide.[4]

    Other Notes

    Go to Redi-Dri™ Product Listing 746428

    Legal Information

    Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

    SAFETY INFORMATION

    pictograms

    GHS08

    signalword

    Danger

    hcodes

    H372

    pcodes

    P260 - P264 - P270 - P314 - P501

    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