215929

Potassium iodate

ACS reagent, 99.5%

• 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

Properties

• 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 (SO₄^2-): ≤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

Description

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.

Safety Information

• Pictograms: GHS03,GHS07
• Signal Word: Danger
• Hazard Statements: H272,H302,H319
• Precautionary Statements: P210 - P220 - P264 - P280 - P301 + P312 - P305 + P351 + P338
• 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