Potassium iodate (KIO₃) is an inorganic oxidizing salt widely used as a primary standard in volumetric analysis (e.g., iodometric and redox titrations), as a source of iodate ions in analytical chemistry, and in preparation of standard solutions. It is supplied in high-purity crystalline form and is suitable for laboratory reagent and quality control use.
Potassium iodate, catalogue No. 105051 (1.05051), is a high-purity inorganic salt supplied by MilliporeSigma / Merck. With formula KIO₃ and molar mass of 214.00 g/mol, it functions as a stable oxidizing agent and a primary standard for analytical titrations. It is routinely used to prepare standard solutions for iodometric, redox and related volumetric methods in analytical laboratories. The solid crystalline reagent meets high analytical quality standards appropriate for rigorous laboratory work.
Advantages
- High purity reagent suitable for analytical titrations and standard solution preparation.
- Stable oxidizing agent with well-defined stoichiometry.
- Useful in iodometric and redox titration methods.
- Reliable performance for laboratory reagent applications in environmental, pharmaceutical, food and water analysis.
Technical specifications
| Chemical name | Potassium iodate |
| Chemical formula | KIO₃ |
| Molecular weight | 214.00 g/mol |
| CAS number | 7758-05-6 |
| Assay / Purity | ≥ 99 % (typically) |
| Physical form | Crystalline solid |
| Intended use | Analytical reagent, titration standard, oxidizing agent |
| Storage conditions | Store in a cool, dry place in a tightly closed container. |
| Brand | Merck |