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746428

Sigma-Aldrich

Iodure de potassium

anhydrous, free-flowing, Redi-Dri, ACS reagent, ≥99%

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About This Item

Formule linéaire :
KI
Numéro CAS:
Poids moléculaire :
166.00
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352302
ID de substance PubChem :
Nomenclature NACRES :
NA.21
Essai:
≥99%
Forme:
crystals
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Qualité

ACS reagent
anhydrous
free-flowing

Niveau de qualité

Pression de vapeur

1 mmHg ( 745 °C)

Gamme de produits

Redi-Dri

Essai

≥99%

Forme

crystals

Impuretés

≤0.001% N compounds
≤0.005% insolubles

Perte

≤0.2% loss on drying

pH

6.0-9.2 (25 °C, 5%)

Pf

681 °C (lit.)

Traces d'anions

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

Traces de cations

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

Chaîne SMILES 

[K+].[I-]

InChI

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

Clé InChI

NLKNQRATVPKPDG-UHFFFAOYSA-M

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Description générale

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

Redi-Dri technology eliminates clumping and the need for complicated procedures to keep your salts free-flowing. Keeping your salts dry helps improve your results by giving accurate measurements and easier-to-handle salts and buffers. Rather than drying your salts in an oven or desiccator or breaking them apart manually, Redi-Dri ensures that your salts will remain easy-to-use for months without worrying about anti-caking agents. Even after repeated openings you can be assured that your results are always accurate. Redi-Dri saves you time, energy and money by keeping your salts usable for longer!

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.
  • Conversion of aryl halide to aryl iodides in the presence of nickel catalysts.
  • Preparation of sulfonated oxindoles from activated alkenes and sulfonylhydrazides in water and in the presence of 8-crown-6 and tert-butyl hydroperoxide.

Caractéristiques et avantages

  • Increased efficiency – Eliminate time and effort of loosening hardened powders
  • Safety – Avoid risks of using tools of force to break up clumps
  • Economy – Faster preparation and solvation increase productivity and reduce costs
  • Assured quality – Excellent, expert-tested quality with no anti-caking agents
  • Flexible volumes – Available from research amounts to scale-up quantities

Informations légales

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

Pictogrammes

Health hazard

Mention d'avertissement

Danger

Mentions de danger

Classification des risques

STOT RE 1 Oral

Organes cibles

Thyroid

Code de la classe de stockage

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

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


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Articles

Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.

Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.

Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.

Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.

Questions

1–3 of 3 Questions  
  1. How long will material remain free-flowing after it is opened?

    1 answer
    1. While the exact amount of time your material will remain free-flowing can vary, this largely depends on the ambient storage conditions and how many times it is opened.

      Helpful?

  2. How does Redi-Dri™ help keep salts and buffers free-flowing?

    1 answer
    1. Redi-Dri™ products are specially handled and the bottle is specially designed to ensure that the product will remain dry without adding impurities or additives to the product. Ensuring that you receive the highest quality material that is easy to handle.

      Helpful?

  3. Are there any special storage conditions that must be maintained?

    1 answer
    1. No, Redi-Dri™ products can be stored under the same conditions as the equivalent non-Redi-Dri™ products.

      Helpful?

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