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215929

Sigma-Aldrich

Potassium iodate

ACS reagent, 99.5%

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About This Item

Linear Formula:
KIO3
CAS Number:
7758-05-6
Molecular Weight:
214.00
EC Number:
231-831-9
MDL number:
MFCD00011406
UNSPSC Code:
12352302
PubChem Substance ID:
329752178
NACRES:
NA.21
Assay:
99.4-100.4% (ACS specification)
99.5%
grade:
ACS reagent
form:
powder
Pricing and availability is not currently available.

grade

ACS reagent

Quality Level

200

Assay

99.4-100.4% (ACS specification)
99.5%

form

powder

impurities

≤0.005% N compounds
≤0.005% insolubles

pH

5.0-8.0 (25 °C, 5%)

mp

560 °C (lit.)

density

3.93 g/mL at 25 °C (lit.)

anion traces

chloride, bromide (as Cl)-: ≤0.01%
iodide (I-): ≤0.001%
sulfate (SO42-): ≤0.005%

cation traces

Fe: ≤0.001%
Na: ≤0.005%
heavy metals: ≤5 ppm (by ICP-OES)

SMILES string

[K+].[O-]I(=O)=O

InChI

1S/HIO3.K/c2-1(3)4;/h(H,2,3,4);/q;+1/p-1

InChI key

JLKDVMWYMMLWTI-UHFFFAOYSA-M

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General description

KIO3 can be used as a substitute of KI in radiation protection.[1] A kinetic study of thermal degradation of KIO3 by γ-rays suggests that rate of decomposition increases while activation energy decreases upon irradiation.[2]

Application

Potassium iodate (KIO3) may be used as an oxidizing agent in the estimation of hydrolyzable tannins (gallotannins and ellagitannins) in plant samples.[3] It may also be used in the preparation of polyaniline,[4] poly(o-anisidine),[4] poly[aniline-co-(o-anisidine)[4] and TiO2 nanoparticles.[5]

Pictograms

Flame over circleExclamation mark
GHS03,GHS07

Signal Word

Danger

Hazard Statements

H272,H302,H319

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Ox. Sol. 2

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 1

Flash Point(F)

does not flash

Flash Point(C)

does not flash

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX0668
MKCW2102
MKCT6680
MKCQ8066
MKCQ4324

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Potassium iodide

Mechanistic study of osmium (VIII) promoted oxidation of crotonic acid by aqueous alkaline solution of potassium iodate
Singh B, et al.
Indian Journal of Chemistry, 54, 1387-1393 (2015)
Thermal decomposition kinetics of potassium iodate.
Muraleedharan K.
Journal of Thermal Analysis and Calorimetry, 114(2), 491-496 (2013)
Yawen Wang et al.
Journal of colloid and interface science, 430, 31-39 (2014-07-07)
In this paper, we report a novel polyol process to synthesize highly water-dispersible anatase titanium dioxide (TiO2) nanoparticles (∼5 nm) by the introduction of inorganic oxidizing agent--KIO3. The obtained TiO2 nanoparticles are well dispersible in water at pH≥5.0 and the
Paul W Hartzfeld et al.
Journal of agricultural and food chemistry, 50(7), 1785-1790 (2002-03-21)
A widely used method for analyzing hydrolyzable tannins afer reaction with KIO(3) has been modified to include a methanolysis step followed by oxidation with KIO(3). In the new method, hydrolyzable tannins (gallotannins and ellagitannins) are reacted at 85 degrees C
Synthesis and properties of polyaniline, poly (o-anisidine), and poly [aniline-co-(o-anisidine)] using potassium iodate oxidizing agent
Neetika M, et al.
High Performance Polymers (2016)
View All Related Papers

Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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