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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

grade

ACS reagent

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. A kinetic study of thermal degradation of KIO3 by γ-rays suggests that rate of decomposition increases while activation energy decreases upon irradiation.

Application

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

pictograms

Flame over circleExclamation mark
GHS03,GHS07

signalword

Danger

Hazard Classifications

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

Storage Class

5.1B - Oxidizing hazardous materials

wgk_germany

WGK 1

flash_point_f

does not flash

flash_point_c

does not flash

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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
Thermal decomposition kinetics of potassium iodate.
Muraleedharan K.
Journal of Thermal Analysis and Calorimetry, 114(2), 491-496 (2013)
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)
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)
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