Potassium

Base Information

• Chemical Name: Potassium
• CAS No.: 7440-09-7
• Molecular Formula: K
• Molecular Weight: 39.0983
• Hs Code.: 2827 39 85
• European Community (EC) Number: 231-119-8
• ICSC Number: 0716
• UN Number: 2257,1420
• Wikipedia: Potassium
• Wikidata: Q703
• NCI Thesaurus Code: C765
• RXCUI: 8588
• Mol file: 7440-09-7.mol

Synonyms:Potassium

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Chemical Property of Potassium

Chemical Property:

• Appearance/Colour: soft silvery metal
• Vapor Pressure: 0.09 mm Hg ( 260 °C)
• Melting Point: 63.38 °C
• Refractive Index: n20/D 1.334
• Boiling Point: 759 °C
• PSA: 0.00000
• Density: 0.862 g/cm³
• LogP: 0.11250
• Storage Temp.: 2-8°C
• Sensitive.: Air & Moisture Sensitive
• Solubility.: H2O: soluble
• Water Solubility.: reacts
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 38.96370648
• Heavy Atom Count: 1
• Complexity: 0
• Transport DOT Label: Dangerous When Wet

Purity/Quality:

Safty Information:

• Pictogram(s): F,C
• Hazard Codes: F,C,Xi,T
• Statements: 14/15-34-36/38-23/24/25
• Safety Statements: 8-43-45-5B-5*-36/37/39-26-5-27

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Metals -> Elements, Metallic
• Canonical SMILES: [K]
• Recent ClinicalTrials: Prevention of Dysrhythmias on the Cardiac Intensive Care Unit - Does Maintenance of High-normal Serum Potassium Levels Matter
• Recent NIPH Clinical Trials: Diet improvement program
• Effects of Short Term Exposure: See ICSC 0357 (potassium hydroxide).
• General Description: Potassium (also referred to as Potassium(1+), Kalium, or in its metallic form) is an essential alkali metal ion that plays a critical role in biological and chemical systems. The study demonstrates its detection using highly selective chromogenic ionophores, which exhibit strong binding affinity and sensitivity, enabling precise colorimetric assays in aqueous solutions and biological fluids. These findings underscore potassium's significance in clinical diagnostics and analytical chemistry.

Technology Process of Potassium

There total 148 articles about Potassium which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 90.0%

potassium hydroxide → potassium (7440-09-7)

Guidance literature:

With pyrographite; In neat (no solvent); reduction of a small amount KOH starts at 700°C (in vac.) and proceeds at 900 °C;;

Reference yield: 80.0%

potassium sulfate → potassium (7440-09-7)

Guidance literature:

With iron; In neat (no solvent); byproducts: Fe2O3, FeS; heating react. mixture in a special apparatus for 2 h at 1000 °C, 1mm Hg; using of rough Fe-splints possible; further by-products: SO2 and O2;;

Reference yield: 80.0%

potassium tungstate → potassium (7440-09-7)

Guidance literature:

With zirconium; In neat (no solvent); K2WO4 + Zr (1:4), start of react.: 570 °C, calm react. process, yield: about 80% K, no oxide;;

upstream raw materials:

potassium carbonate

sodium

aluminium

potassium fluoride

Downstream raw materials:

potassium hydroxide

cadmium

potassium iodide

potassium fluoride

Refernces

Host-Guest Complexation. 50. Potassium and Sodium Ion-Selective Chromogenic Ionophores

10.1021/ja00198a053

The study investigates the design and synthesis of ion-selective chromogenic ionophores for detecting potassium (K+) and sodium (Na+) ions in body fluids. The researchers, led by Donald J. Cram, developed two potassium and one sodium ion-selective chromogenic ionophores (compounds 1-4) that exhibit high sensitivity and selectivity for K+ and Na+ ions. These ionophores are useful for colorimetric assays, allowing for the detection of K+ and Na+ ions in aqueous solutions with detection limits as low as 4 x 10^-6 M for K+ and 2 x 10^-7 M for Na+. The study also explores the influence of pH and solvent composition on the ionophores' selectivity and binding strength. The compounds were synthesized using various aryl compounds as intermediates, and their UV-visible spectral changes in the presence and absence of Na+ and K+ ions were reported. The study highlights the potential of these ionophores for practical applications in clinical and analytical chemistry, particularly in the analysis of serum and other biological fluids.