MilliporeSigma
All Photos(8)

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

grade

ACS reagent
anhydrous

Quality Level

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

Compare Similar Items

View Full Comparison

1 of 4

This Item
P2963PHR13601548280
Potassium iodide anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99%

Sigma-Aldrich

746428

Potassium iodide

Potassium iodide BioXtra, ≥99.0%

Sigma-Aldrich

P2963

Potassium iodide

Potassium Iodide Pharmaceutical Secondary Standard; Certified Reference Material

Supelco

PHR1360

Potassium Iodide

Potassium iodide United States Pharmacopeia (USP) Reference Standard

USP

1548280

Potassium iodide

grade

ACS reagent, anhydrous

grade

-

grade

certified reference material, pharmaceutical secondary standard

grade

pharmaceutical primary standard

vapor pressure

1 mmHg ( 745 °C)

vapor pressure

1 mmHg ( 745 °C)

vapor pressure

1 mmHg ( 745 °C)

vapor pressure

1 mmHg ( 745 °C)

assay

≥99%

assay

≥99.0%

assay

-

assay

-

form

crystals

form

powder

form

-

form

-

impurities

≤0.001% N compounds, ≤0.005% insolubles

impurities

≤0.0005% P, ≤0.005% Insoluble matter

impurities

-

impurities

-

pH

6.0-9.2 (25 °C, 5%)

pH

-

pH

-

pH

-

General description

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.

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

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service