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746428

Sigma-Aldrich

Potassium iodide

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

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100 G
CN¥1,373.33
500 G
CN¥2,661.53
1 KG
CN¥4,610.28
2.5 KG
CN¥9,642.30
6 X 500 G
CN¥12,412.37
12 KG
CN¥34,393.69

CN¥1,373.33

Available to ship onApril 17, 2025Details

Request a Bulk Order
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100 G
CN¥1,373.33
500 G
CN¥2,661.53
1 KG
CN¥4,610.28
2.5 KG
CN¥9,642.30
6 X 500 G
CN¥12,412.37
12 KG
CN¥34,393.69

About This Item

Linear Formula:
KI
CAS Number:
7681-11-0
Molecular Weight:
166.00
EC Number:
231-659-4
MDL number:
MFCD00011405
UNSPSC Code:
12352302
PubChem Substance ID:
329765766
NACRES:
NA.21
grade:
ACS reagent
anhydrous
form:
crystals

CN¥1,373.33

Available to ship onApril 17, 2025Details

Request a Bulk Order

grade

ACS reagent
anhydrous

Quality Level

100

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%)

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Show Differences

1 of 4

This Item
30315793582207969
Potassium iodide anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99%

746428

Potassium iodide

Potassium iodide puriss. p.a., reag. ISO, reag. Ph. Eur., ≥99.0%

30315

Potassium iodide

Potassium iodide anhydrous, free-flowing, Redi-Dri™, ReagentPlus®, 99%

793582

Potassium iodide

Potassium iodide ReagentPlus®, 99%

207969

Potassium iodide

assay

≥99%

assay

≥99.0%, 99.0-100.5% (calc. to the dried substance)

assay

99%

assay

99%

Quality Level

100

Quality Level

200

Quality Level

100

Quality Level

100

grade

ACS reagent, anhydrous

grade

-

grade

anhydrous

grade

-

cation traces

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

cation traces

As: ≤0.1 mg/kg, Ba: ≤20 mg/kg, Ca: ≤10 mg/kg, Fe: ≤3 mg/kg, Mg: ≤10 mg/kg, Na: ≤300 mg/kg

cation traces

-

cation traces

-

anion traces

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

anion traces

bromide, chloride (as Cl-): ≤100 mg/kg, iodate (IO3-): ≤2 mg/kg, phosphate (PO43-): ≤10 mg/kg, sulfate (SO42-): ≤10 mg/kg

anion traces

-

anion traces

-

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
GHS08

Signal Word

Danger

Hazard Statements

H372

Precautionary Statements

P260 - P264 - P270 - P314 - P501

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

  • Specification Sheet

    • Choose from one of the most recent versions:

    Certificates of Analysis (COA)

    Lot/Batch Number
    MKCV7082
    MKCV7244
    MKCW2654
    MKCW6370
    MKCP2917

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

      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.

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

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

    3. How long will material remain free-flowing after it is opened?

      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.

    Qing Chu et al.
    Advanced science (Weinheim, Baden-Wurttemberg, Germany), 7(8), 1903592-1903592 (2020-04-25)
    Congenital heart disease (CHD) is the major cause of morbidity/mortality in infancy and childhood. Using a mouse model to uncover the mechanism of CHD is essential to understand its pathogenesis. However, conventional 2D phenotyping methods cannot comprehensively exhibit and accurately
    Pietro Santulli et al.
    Human reproduction (Oxford, England), 30(1), 49-60 (2014-11-08)
    Are protein oxidative stress markers [thiols, advanced oxidation protein products (AOPP), protein carbonyls and nitrates/nitrites] in perioperative peritoneal fluid higher in women with histologically proven endometriosis when compared with endometriosis-free controls? Protein oxidative stress markers are significantly increased in peritoneal
    Christoph Reiners et al.
    Radiation and environmental biophysics, 52(2), 189-193 (2013-03-12)
    Thyroid cancer in children and adolescents has to be considered as the most severe health consequence of a nuclear reactor emergency with release of radioiodine into the atmosphere. High doses of potassium iodide are effective to block radioiodine thyroid uptake
    Dongjian Zhang et al.
    Journal of drug targeting, 23(2), 180-190 (2014-10-21)
    Necrosis-avid agents are a class of compounds that selectively accumulate in the necrotic tissues after systemic administration, which can be used for in vivo necrosis imaging and targeted therapies. In order to search for a necrosis-avid tracer agent with improved
    W R Heymann
    Journal of the American Academy of Dermatology, 42(3), 490-492 (2000-02-25)
    The inhibition of organic binding of iodide in the thyroid gland by excess iodide, resulting in the cessation of thyroid hormone synthesis, is known as the Wolff-Chaikoff effect. This review explores the nature of the Wolff-Chaikoff effect, both in terms
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    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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