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
• MDL number: MFCD00011406
• EC Index Number: 231-831-9

Properties

• Agency: ISO 17025; reag. Ph. Eur.; reag. USP
• Quality Level: 300
• 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
• 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.

Application

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

Packaging

100 g in Glass bottle

100, 100 g

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

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
• Accompanied by a certificate of analysis (CoA)

Legal Information

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

Safety Information

• Pictograms: GHS03,GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H272 - H302 - H318
• Precautionary Statements: P210 - P220 - P264 - P280 - P301 + P312 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Eye Dam. 1 - Ox. Sol. 2
• Storage Class Code: 5.1B - Oxidizing hazardous materials
• WGK: WGK 3
• Flash Point(F): does not flash
• Flash Point(C): does not flash