Description: This is as a sequel for sodium metal reaction video.Showing potassium metal reacting with various other chemical.In this video,potassium / kalium is reacted with:1.water2.atmospheric oxygen3.ethanol4.sulphuric acidI i'll update this video with videos feathuring more potassium reaction's videos!Potassium is the chemical element with the symbol K (Neo-Latin kalium), atomic number 19, and atomic mass 39.098. Elemental potassium is a soft silvery-white metallic alkali metal that oxidizes rapidly in air and is very reactive with water, generating sufficient heat to ignite the hydrogen emitted in the reaction.Potassium and sodium are alkali metals and are chemically very similar. For this reason, historically their salts were not differentiated. They were finally realized to be different elements when the metals were isolated by electrolysis in the early 19th century. Potassium in nature occurs only as ionic salt. As such, it is found dissolved in seawater (which is 0.04 % potassium by weight), and as part of many minerals. Industrial chemical applications of potassium tend to employ potassium ion's extreme water-solubility as part of chemicals which depend for activity on their non-potassium components. Potassium metal has only a few specialty applications, being replaced in most chemical reactions with sodium metal.Potassium ion is necessary for the function of all living cells, and is thus present in all plant and animal tissues. It is found in especially high concentrations within plant cells, and in a mixed diet, it is most highly concentrated in fruits. The high concentration of potassium in plants, associated with comparatively very low amounts of sodium there, historically resulted in potassium first being isolated from the ashes of plants (potash), which in turn gave the element its modern name. Heavy crop production rapidly depletes soils of potassium, and agricultural fertilizers consume 93% of the potassium chemical production of the modern world economy.
Potassium metal reaction (Reaksi logam kalium) - Download MP3 music or MP4 video:
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Potassium metal reacts more easily with air than sodium and lithium From the Peter Wothers lecture series - The Alkali Metals.
Potassium metal is a group one reactive metal that has to be stored under oil, or it will react with the oxygen in the air around us. this video reveals the ...
The release of oxygen causes a violent reaction between potassium superoxide and lithium From the Peter Wothers lecture series - The Alkali Metals.
Explosions and science from UK Sky One series Brainiac.
Potassium metal reacts with hydrochloric acid in this video. About 5 mL of the HCl is added to a small piece of potassium metal. You can see the atomic emiss...
A chemical demonstration of the reaction between sodium and water and between potassium and water. Carleton University, Ottawa, Canada.
The first three alkali metals are demonstrated reacting with water. Phenolphthalein is added to the water to illustrate the formation of hydroxide ions.
For anyone who insists it is fake, www.youtube.com/watch?v=5aD6HwUE2c0 and stop giving me a headache. Watch to the end for the best (Cesium!)! A wonderful re...
Explosive reaction of potassium and iodine to form another salt, potassium iodide. From the Peter Wothers lecture series - The Alkali Metals.
A very small piece of potassium metal reacts with nitric acid. If you look closely, it seems that the reaction is less reactive than the same reaction of sod...
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