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746428

Sigma-Aldrich

Potassium iodide

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

Linear Formula:
KI
CAS Number:
Molecular Weight:
166.00
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

grade

ACS reagent
anhydrous

vapor pressure

1 mmHg ( 745 °C)

product line

Redi-Dri

assay

≥99%

form

crystals

quality

free-flowing

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

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General description

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

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.

Packaging

1, 2.5 kg in poly bottle
12 kg in poly drum
100, 500 g in poly bottle

Features and Benefits

  • 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

Legal Information

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

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

STOT RE 1 Oral

Target Organs

Thyroid

Storage Class Code

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

WGK

WGK 3

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

More Documents

Quotes and Ordering

Articles

Redi-Dri™ – The World of Free-flowing Hygroscopic Products

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

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