Energy & Green Tech
Sodium, the main constituent in salt, and potassium alteration are associated with some of the world's most valuable ore deposits.
Jul 23, 2021
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440
Energy & Green Tech
Electric vehicles (EVs) hold great promise for our energy-efficient, sustainable future but among their limitations is the lack of a long-lasting, high energy density battery that reduces the need to fuel up on long-haul ...
Nov 4, 2020
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39
Engineering
Children born prematurely often develop neuromotor and cognitive developmental disabilities. The best way to reduce the impacts of those disabilities is to catch them early through a series of cognitive and motor tests. But ...
Dec 21, 2018
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Energy & Green Tech
Emil Thorin from Umeå University has developed a new optical method for rapid measurements of gaseous inorganic species in biomass combustion and gasification. The new technology will contribute to more efficient conversion ...
May 17, 2023
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Engineering
Scientists at the U.S. Department of Energy's Oak Ridge National Laboratory have begun operating a unique system designed to enable a variety of testing to characterize the performance of an advanced heat transfer fluid for ...
Feb 14, 2023
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Potassium (pronounced /pɵˈtæsiəm/) is the chemical element with the symbol K (Latin: kalium, from Arabic: القَلْيَه al-qalyah “plant ashes”, cf. Alkali from the same root), atomic number 19, and atomic mass 39.0983. Potassium was first isolated from potash. 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 evolved hydrogen.
Potassium in nature occurs only as ionic salt. As such, it is found dissolved in seawater, and as part of many minerals. 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 in plant cells, and in a mixed diet, it is most highly concentrated in fruits.
In many respects, potassium and sodium are chemically similar, although they have very different functions in organisms in general, and in animal cells in particular.
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