![]() ![]() The symbol K originates from the Latin word kalium. The origin of the element's name comes from the English word 'potash,' meaning pot ashes, and the Arabic word qali, which means alkali. In its elemental form, potassium has a silvery gray metallic appearance, but its compounds (such as potassium hydroxide) are more frequently used in industrial and chemical applications. As with other alkali metals, potassium decomposes in water with the evolution of hydrogen because of its reacts violently with water, it only occurs in nature in ionic salts. It is one of the most reactive and electropositive of all metals and rapidly oxidizes. Potassium is the seventh most abundant element on earth. Potassium was discovered and first isolated by Sir Humphrey Davy in 1807. 12H 2 O Formula Weight: 499.40 CAS No.The potassium atom has a radius of 227.2 pm and a Van der Waals radius of 275 pm. MilliporeSigma Synonyms: Chrome alum Potassium chromium (III) sulfate dodecahydrate Formula: CrK (SO 4) 2 The number of electrons in each of Potassium's shells is and its electron configuration is 4s 1. Potassium (atomic symbol: K, atomic number: 19) is a Block S, Group 1, Period 4 element with an atomic weight of 39.0983. ![]() ![]() Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement. Typical and custom packaging is available. American Elements produces to many standard grades when applicable, including Mil Spec (military grade) ACS, Reagent and Technical Grade Food, Agricultural and Pharmaceutical Grade Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Metallic ions can also be dispersed utilizing suspended or coated nanoparticles and deposited utilizing sputtering targets and evaporation materials for uses such as solar cells and fuel cells. Organometallic forms are soluble in organic solutions and sometimes in both aqueous and organic solutions. Most metal sulfate compounds are readily soluble in water for uses such as water treatment, unlike fluorides and oxides which tend to be insoluble. Sulfate compounds are salts or esters of sulfuric acid formed by replacing one or both of the hydrogens with a metal. Synonym(s): Chrome alum, Potassium chromium(III) sulfate dodecahydrate, Chromium(III) potassium sulfate dodecahydrate. High purity, submicron and nanopowder forms may be considered. Thin Film Deposition & Evaporation MaterialsĬhromium Potassium Sulfate is generally immediately available in most volumes.Additive Manufacturing & 3D Printing Materials. ![]()
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