1.02404

Potassium iodate

volumetric standard, secondary reference material for iodometry, traceable to NIST SRM Certipur^®

• Synonym(s): Potassium iodate
• Empirical Formula (Hill Notation): IKO₃
• CAS Number: 7758-05-6
• Molecular Weight: 214.00
• UNSPSC Code: 41116107
• EC Index Number: 231-831-9
• NACRES: NA.24
• MDL number: MFCD00011406

Properties

• Quality Level: 300
• agency: ISO 17025, reag. Ph. Eur., reag. USP
• form: solid
• technique(s): titration: suitable
• pH: 6 (20 °C, 50 g/L in H₂O)
• mp: 560 °C (decomposes)
• solubility: 92 g/L
• density: 3.98 g/cm³ at 20 °C
• bulk density: 2000 kg/m³
• storage temp.: 15-25°C
• SMILES string: [K+].[I](=O)(=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

Potassium iodate is a volumetric standard manufactured under stringent conditions and measured with the highest possible precision. Its mass fraction is determined by potentiometric titration, and it is qualified in a DIN EN ISO/IEC 17025 accredited laboratory.

Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.

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Application

It is used as secondary reference material for the standardization of volumetric solutions in iodometric titrations, following USP and Ph. Eur.

Features and Benefits

• Available as a solid in a secure glass bottle to ensure its stability for the entire shelf life until opened.
• Certified reference material according to ISO 17034
• High-purity material traceable to NIST SRMs
• Qualified in a DIN EN ISO/IEC 17025 accredited laboratory
• In accordance with the chapter reagents of USP and Ph. Eur
• High-quality offering accurate titer determinations

Packaging

SKU-pack size numbers ending with a "3" are SmartChemicals with an RFID tag on the label for seamless data transfer to the instrument, e.g. xxxxxx1003 or xxxxxxx 4003. More information on www.sigmaaldrich.com/SmartChemicals

Legal Information

CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• pictograms: GHS03,GHS07
• signalword: Danger
• hcodes: H272 - H302 - H319
• pcodes: P210 - P220 - P264 - P280 - P301 + P312 - P305 + P351 + P338
• 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