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Manganese is a chemical element; it has symbol Mn and atomic number 25. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. Manganese was first isolated in the 1770s. Manganese is a transition metal with a multifaceted array of industrial alloy uses, particularly in stainless steels.
Manganese is a chemical element with the symbol Mn and atomic number of 25. It is found as the free element in nature (often in combination with iron), and in many minerals. The free element is a metal with important industrial metal alloy uses. Manganese ions are variously colored, and are used industrially as pigments and as
Consuming more than 11 mg of manganese can put you at risk of manganese toxicity, which is as bad as it sounds. "Too much of any 'good thing' is not a good thing," Dr. Costello warns.
Manganese precipitates in soils in the form of manganese-iron oxide minerals, which promote nutrient and organic matter accumulation due to their high surface area. Manganese is the tenth most abundant metal in the Earth's crust, making up approximately 0.1% of the total composition, or about 0.019 mol kg −1 , which is found mostly in the ...
Manganese is an essential human dietary element. It is present as a coenzyme in several biological processes, which include macronutrient metabolism, bone formation, and free radical defense systems. It is a critical component in dozens of proteins and enzymes. [ 3] The human body contains about 12 mg of manganese, mostly in the bones.
Ferromanganese metal, note mirror-like sheen responsible for German name spiegel. Ferromanganese is an alloy of iron and manganese, with other elements such as silicon, carbon, sulfur, nitrogen and phosphorus. [ 1] The primary use of ferromanganese is as a type of processed manganese source to add to different types of steel, such as stainless ...
Manganese deficiency (medicine) Manganese deficiency (medicine) Specialty. Endocrinology. Manganese deficiency in humans results in a number of medical problems. [ 1] Manganese is a vital element of nutrition in very small quantities (adult male daily intake 2.3 milligrams). However poisoning may occur when greater amounts are ingested.
Manganese dioxide is the inorganic compound with the formula MnO. 2. This blackish or brown solid occurs naturally as the mineral pyrolusite, which is the main ore of manganese and a component of manganese nodules. The principal use for MnO.
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