746428

Potassium iodide

anhydrous, free-flowing, Redi-Dri^™, ACS reagent, ≥99%

• Lineární vzorec: KI
• Číslo CAS: 7681-11-0
• Molekulová hmotnost: 166.00
• NACRES: NA.21
• PubChem Substance ID: 329765766
• UNSPSC Code: 12352302
• EC Number: 231-659-4
• MDL number: MFCD00011405
• Assay: ≥99%
• Grade: ACS reagent, anhydrous
• Form: crystals
• Solubility: water: complete (ca.1,430 g/l at 25 °C (77 °F))

Vlastnosti

• Quality Segment: 100
• grade: ACS reagent, anhydrous
• vapor pressure: 1 mmHg ( 745 °C)
• product line: Redi-Dri^™
• assay: ≥99%
• form: crystals
• quality: free-flowing
• impurities: ≤0.001% N compounds, ≤0.005% insolubles
• loss: ≤0.2% loss on drying
• pH: 6.0-9.2 (25 °C, 5%)
• mp: 681 °C (lit.)
• solubility: water: complete (ca.1,430 g/l at 25 °C (77 °F))
• anion traces: chloride, bromide (as Cl)^-: ≤0.01%, iodate (IO₃^-): ≤3 ppm, phosphate (PO₄^3-): ≤0.001%, sulfate (SO₄^2-): ≤0.005%
• cation traces: Ba: ≤0.002%, Ca: ≤0.002%, Fe: ≤3 ppm, Mg: ≤0.001%, Na: ≤0.005%, heavy metals (as Pb): ≤5 ppm
• SMILES string: [K+].[I-]
• InChI: 1S/HI.K/h1H;/q;+1/p-1
• InChI key: NLKNQRATVPKPDG-UHFFFAOYSA-M

Popis

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!

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

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Bezpečnostní informace

• Piktogramy: GHS08,GHS07
• Výstražné slovo: Danger
• Kódy nebezpečí: H319,H360FD,H373
• Bezpečnostní pokyny: P202 - P260 - P264 - P280 - P305 + P351 + P338 - P308 + P313
• Bod vzplanutí (°F): Not applicable
• Bod vzplanutí (°C): Not applicable
• Hazard Classifications: Eye Irrit. 2 - Repr. 1B - STOT RE 2 Oral
• Cílové orgány: Thyroid,Liver
• Skladovací třída: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects