Potassium iodide
SIGALD/746428 - anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99%
CAS Number: 7681-11-0
Empirical Formula (Hill Notation): KI
Molecular Weight: 166.00
EC Number: 231-659-4
MDL Number: MFCD00011405
Linear Formula: KI
Product Type: Chemical
Redi-Dri free-flowing salts
Free-flowing salts
Loss on Drying Graph
The Redi-Dri™ packaging system eliminates the common issue of clumping that is noted with many hygroscopic salts and buffers and provides free-flowing, ready-to- use material at all times.
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 746428-100G
This image depicts SKU: 746428-100G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 746428-500G
This image depicts SKU: 746428-500G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 746428-1KG
This image depicts SKU: 746428-1KG
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 746428-2.5KG
This image depicts SKU: 746428-2.5KG
| anion traces | chloride, bromide (as Cl)-: ≤0.01% |
| iodate (IO3-): ≤3 ppm | |
| phosphate (PO43-): ≤0.001% | |
| sulfate (SO42-): ≤0.005% | |
| assay | ≥99% |
| cation traces | Ba: ≤0.002% |
| Ca: ≤0.002% | |
| Fe: ≤3 ppm | |
| heavy metals (as Pb): ≤5 ppm | |
| Mg: ≤0.001% | |
| Na: ≤0.005% | |
| form | crystals |
| grade | ACS reagent |
| anhydrous | |
| impurities | ≤0.001% N compounds |
| ≤0.005% insolubles | |
| InChI | 1S/HI.K/h1H;/q;+1/p-1 |
| InChI key | NLKNQRATVPKPDG-UHFFFAOYSA |
| loss | ≤0.2% loss on drying |
| mp | 681 °C (lit.) |
| pH | 6.0-9.2 (25 °C, 5%) |
| product line | Redi-Dri™ |
| quality | free-flowing |
| Quality Level | 100  |
| SMILES string | [K+].[I-] |
| solubility | water: complete (ca.1,430 g/l at 25 °C (77 °F)) |
| vapor pressure | 1 mmHg ( 745 °C) |
| Application: | Potassium iodide may be used as a catalyst in the following processes: • Conversion of aromatic primary amines to the corresponding nitro compounds in the presence of tert-butyl hydroperoxide as oxidant. • Conversion of aryl halide to aryl iodides in the presence of nickel catalysts. • Preparation of sulfonated oxindoles from activated alkenes and sulfonylhydrazides in water and in the presence of 8-crown-6 and tert-butyl hydroperoxide. |
| Features and Benefits: | • Increased efficiency – Eliminate time and effort of loosening hardened powders • Safety – Avoid risks of using tools of force to break up clumps • Economy – Faster preparation and solvation increase productivity and reduce costs • Assured quality – Excellent, expert-tested quality with no anti-caking agents • Flexible volumes – Available from research amounts to scale-up quantities |
| General description: | Potassium iodide is a water soluble inorganic salt that can be prepared by reacting hydrogen iodide and potassium bicarbonate. Redi-Dri™ technology eliminates clumping and the need for complicated procedures to keep your salts free-flowing. Keeping your salts dry helps improve your results by giving accurate measurements and easier-to-handle salts and buffers. Rather than drying your salts in an oven or desiccator or breaking them apart manually, Redi-Dri™ ensures that your salts will remain easy-to-use for months without worrying about anti-caking agents. Even after repeated openings you can be assured that your results are always accurate. Redi-Dri™ saves you time, energy and money by keeping your salts usable for longer! |
| Legal Information: | Redi-Dri is a trademark of Sigma-Aldrich Co. LLC |
| Packaging: | 1, 2.5 kg in poly bottle |
| Packaging: | 100, 500 g in poly bottle |
| Packaging: | 12 kg in poly drum |
| Symbol |  GHS08 |
| Signal word | Danger |
| Hazard statements | H372 |
| Precautionary statements | P260 - P264 - P270 - P314 - P501 |
| Hazard Codes | Xn |
| Risk Statements | 22-36/38 |
| Safety Statements | 26 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Purity | ≥99% |
| mp | 681 °C (lit.) |
| UNSPSC | 12352302 |