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Key Documents

215929

Sigma-Aldrich

Potassium iodate

ACS reagent, 99.5%

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About This Item

Linear Formula:
KIO3
CAS Number:
Molecular Weight:
214.00
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.21
grade:
ACS reagent
form:
powder

grade

ACS reagent

Quality Level

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

Signal Word

Danger

Hazard Statements

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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