Potassium pronunciation

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Facts You Should Know: The Periodic Table Quiz Potassium is produced by sodium reduction of molten potassium chloride, KCl, at 870 °C (1,600 °F). Molten KCl is continuously fed into a packed distillation column while sodium vapour is passed up through the column. By condensation of the more volatile potassium at the top of the distillation tower, the reaction Na + KCl → There is little commercial demand for potassium metal itself, and most of it is converted by direct combustion in dry air to potassium superoxide, KO 2, which is used in respiratory equipment because it liberates +and O 2 − ions. It also can be formed by oxidation of potassium amalgam with dry air or oxygen.) The metal is also used as an Get a Britannica Premium subscription and gain access to exclusive content. Sodium-potassium alloy (NaK) is used to a limited extent as a heat-transfer coolant in some fast-breeder In addition to the alloys of potassium with potassium-cesium binary systems. The latter system forms an alloy melting at approximately −38 °C (−36 °F). Modification of the system by the addition of sodium results in a ternary eutectic melting at approximately −78 °C (−108 °F). The Potassium (as K +) is required by all plants and animals. Plants need it for photosynthesis, regulation of + and K + act at The potassium content of plants varies considerably, though it is ordinarily in the range of 0.5–2 percent of the dry weight. In humans the ratio of potassium between the cell and plasma is approxi...

Recent Examples on the Web This occurs due to light fragmentation between microscopic layers of feldspar (aluminosilicate minerals with calcium, sodium or potassium) in the gem. — Olivia Munson, USA TODAY, 15 May 2023 Those contain small amounts of sugar, as well as sodium and potassium, which can also help promote water retention in the body. — Lisa Drayer, CNN, 6 May 2023 Both compost tea and chicken manure are primarily nitrogen, and the tree needs more phosphorus and potassium. — oregonlive, 6 May 2023 Like humans, frogs use sodium and potassium to drive electrical processes, including those in the heart. — Matt Hrodey, Discover Magazine, 2 May 2023 Many factors can put you at risk; a short list includes having diabetes, eating too much sodium and too little potassium, not being physically active, having extra weight, smoking, having a family history of hypertension, and drinking too much alcohol. — Suzannah Weiss, Men's Health, 31 Mar. 2023 The seeds are rich in fiber, vitamin E and minerals including potassium, magnesium, iron, zinc, manganese and copper. — Good Housekeeping, 9 Jan. 2023 Levels of sodium and potassium levels in the blood, for example, are examples of nutrients that are homeostatically controlled. — Monique Brouillette, Popular Mechanics, 12 Aug. 2022 Calcium and potassium supplement the nutrients your body misses out on without carbs. — Dallas News, 9 Aug. 2022 See More These examples are programmatically compiled from various online sources to illus...