When potassium reacts with water it catches fire, generating a purple glow. The result is a colorless solution.Know More
Potassium is a metal with a soft texture and it has a silvery appearance when cut, which becomes tarnished as it oxidizes in air. The metal belongs to the alkali group on the periodic table. Light enough to float on water, potassium has an instant reaction when it comes into contact with the fluid.
Adding potassium to water causes an instant chemical reaction that results in the temperature of the metal rising so high that it ignites. Hydrogen gas from the reaction coming into contact with oxygen in the air is what causes the potassium to catch fire. The metal then glows with a pale, lilac flame. The chemical reaction of potassium with water forms a potassium hydroxide solution that has no color along with the hydrogen gas.
Potassium is part of the nutritional needs of almost every organism, mainly present within cells, it plays a vital role in nerve stimulation, the regulation of blood pressure and the contraction of muscles. While potassium does not dissolve in water, there are potassium compounds that are water soluble, which are popular ingredients in fertilizers and detergents.Learn more in Atoms & Molecules
Potassium phosphite is an alternate name for monopotassium phosphite. It is used commercially as a fertilizer, which is soluble in water and formed by the reaction between phosphorous acid (in an equimolar amount) and a potassium ion, typically from potassium hydroxide or potassium carbonate.Full Answer >
Sir Humphry Davy discovered potassium in 1807. He exposed very dry molten potash to an electric current, and potassium collected on the end of the cathode. Potassium was the first metal to be isolated in this manner.Full Answer >
Potassium is a mineral used for the treatment and prevention of low potassium levels, according to WebMD. It is also used for treating high blood pressure and preventing stroke.Full Answer >
Potassium hydride, with the molecular formula KH, is a direct combination of 2.51 percent hydrogen and 97.49 percent potassium. It is colorless and crystal-like in appearance, although some samples appear gray. It has a density of 1.43 g/cm^3 and a molar mass of 40.1062 g/mol.Full Answer >