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Merck

215929

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
NACRES:
NA.21
PubChem Substance ID:
329752178
UNSPSC Code:
12352302
EC Number:
231-831-9
MDL number:
MFCD00011406
Assay:
99.4-100.4% (ACS specification)
99.5%
Grade:
ACS reagent
Form:
powder
Solubility:
water: soluble

Key Documents

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Product Name

Potassium iodate, ACS reagent, 99.5%

InChI key

JLKDVMWYMMLWTI-UHFFFAOYSA-M

InChI

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

SMILES string

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

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.)

Quality Level

200

solubility

water: soluble

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)

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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.

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.

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

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
MKDB0501
MKDB0006
MKCX9517
MKCX0668
MKCW2102

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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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