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  • Manganese - Wikipedia

    OverviewHistoryCharacteristicsOccurrence and productionApplicationsBiological rolePrecautionsEnvironmental health concerns

    The origin of the name manganese is complex. In ancient times, there were two black minerals from the regions of the Magnetes (either Magnesia, located within modern Greece or Magnesia ad Sipylum, located within modern Turkey). They were both called magnes from their place of origin, but were considered to differ in sex. The male magnes attracted iron, and was the iron ore now known as lodestone or magnetite, and which probably gave us the term magnet. The female magnes ore did not attract iron, but was use

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  • It's Elemental - The Element Manganese

    Proposed to be an element by Carl Wilhelm Scheele in 1774, manganese was discovered by Johan Gottlieb Gahn, a Swedish chemist, by heating the mineral pyrolusite (MnO 2) in the presence of charcoal later that year.Today, most manganese is still obtained from pyrolusite, although it is usually burned in a furnace with powdered aluminum or is treated with sulfuric acid (H 2 SO 4) to form ...

  • The Element Chromium Iron
  • Who discovered Manganese? – Who discovered it?

    Manganese is a chemical element and metal. Its chemical symbol is Mn and atomic number is 25. It is found in nature and in minerals. It was discovered in 1774 by Johan Gottlieb Gahn, a Swedish chemist. He isolated and discovered this pure element by heating the

  • manganese Uses, Facts, Compounds Britannica

    Manganese, chemical element that is a silvery white, hard, brittle metal of Group 7 in the periodic table. It was recognized as an element in 1774 by the Swedish chemist Carl Wilhelm Scheele. Although rarely used in pure form, manganese is essential to steelmaking.

  • Who Discovered Manganese - Want to Know it

    Dec 21, 2010  Manganese, not to be confused with the metal magnesium, is an element with the chemical symbol Mn and the atomic number 25. This post will tell you who discovered manganese and then list a few interesting facts about the element.

  • Manganese nodule - Wikipedia

    The mineral composition of manganese-bearing minerals is dependent on how the nodules are formed; sedimentary nodules, which have a lower Mn 2+ content than diagenetic, are dominated by Fe-vernadite, Mn-feroxyhyte, and asbolane-buserite while diagenetic nodules are dominated by buserite I, birnessite, todorokite, and asbolane-buserite. The growth types termed diagenetic and hydrogenetic ...

  • Manganese Minerals Education Coalition

    Manganese. Manganese (element #25, symbol Mn) is a gray-white metal with a pinkish tinge, and is very brittle, but hard. It was discovered 1774 by Johann Gahn. Manganese easily reacts with water and air. On Earth, manganese is never found as a free metal, but it is found in a number of minerals.

  • Chemistry for Kids: Elements - Manganese

    How was it discovered? The first scientist to isolate the element manganese was Swedish chemist Johan G. Gahn in 1774. Other scientists had known of the existence of the element prior to this, but none had been able to isolate it. Where did manganese get its name? The name comes from the Latin word "magnes", which means magnet.

  • Manganese - Discovery

    Swedish chemist Carl Wilhelm Scheele first found the elemental nature of manganese. Johan Gottlieb Gahn who was Scheele's colleague then discovered the element in 1774. The name Manganese is a name from a corrupted latin word magnestism or magnes, which is an allusion to the ore of magnetic properties. Manganese crystals are to be found in nature.

  • Who discovered manganese - Answers

    Manganese was first discovered in Stockholm, Sweden by Johann Gottlieb Gahn, a Swedish mineralogist and chemist, in 1774 and it was first recognized as an element by

  • Manganese Metal - online catalogue source - supplier of ...

    Manganese was discovered in 1774 by J.G. Grahn in Stockholm, Sweden. Manganese is abundant in the earth's crust (950 ppm) and its principle ore is pyrolusite, a crude form of the dioxide. It is obtained by reduction with aluminium or in a blast furnace. Pure manganese is a hard, brittle, silvery coloured, metallic element which exists in three ...

  • Manganese History, Uses, Facts, Physical Chemical ...

    Various oxides of manganese have been used in ancient times as pigments due to their unique and brilliant colors. Manganese pigment has been found in cave paintings around 30,000 years ago [1]. It was used by Romans and Egyptians to remove or add color to glass. Manganese was discovered in a relatively impure form by Gottlieb Gahn in 1774.

  • Manganese (Mn) - Chemical properties, Health and ...

    Discovered. Johann Gahn in 1774. Manganese. Manganese is a pinkinsh-gray, chemically active element. It is a hard metal and is very brittle. It is hard to melt, but easily oxidized. Manganese is reactive when pure, and as a powder it will burn in oxygen, it reacts with

  • Manganese - Element information, properties and uses ...

    Manganese +3 is highly reactive and can break down the chemical bonds of lignin, making it available as food for the fungus. Fungi are not the only organisms that harness the power of manganese chemistry. Manganese is an essential element for all life forms.

  • Chem4Kids: Manganese: General Info and Everyday Items

    Deep Sea Nodules These nodules aren't like the ones in your body. These nodules with manganese are found on the floor of the ocean. A few decades ago, oceanographers discovered these nodules and many new forms of life on the floor of the ocean.

  • Johan Gottlieb Gahn Swedish mineralogist Britannica

    Johan Gottlieb Gahn, (born Aug. 19, 1745, Voxna, near Söderhamn, Swed.—died Dec. 8, 1818, Stockholm), Swedish mineralogist and crystallographer who discovered manganese in 1774. His failure to win fame may be related to the fact that he published little. He saved the notes, papers, and letters of his friend Carl Wilhelm Scheele, who discovered chlorine, but not his own.

  • Facts About Manganese Live Science

    Jan 31, 2017  It was discovered that manganese is vital to human lives in the 1950s, according to Emsley, in an article published in Nature. Manganese is essential to

  • Manganese Facts - Periodic Table of the Elements

    Manganese is important in the processes that form bones, clots blood, and regulates blood sugar. As important as manganese is to our health, the body does not store manganese. Manganese is the 12 th most abundant element in the Earth's crust. Manganese has an abundance of 2 x 10-4 mg/L in sea water (parts per million).

  • Where was manganese discovered - Answers

    Nobody knows the place of discovery for Manganese, however one can only assume that it was discovered in Sweden due to the fact that its discoverer, Johann Gahn was a Swedish scientist.

  • Manganese - Periodic table

    Manganese is the twelfth most abundant element in the earth’s crust and it is an essential trace element for all life on earth. ... BBC Report, Neanderthal ‘make-up’ containers discovered 9 January 2010. David Dingledy, Decolorization of glass., J. Chem. Educ., 1965, 42 (3), p160.

  • WebElements Periodic Table » Manganese » the essentials

    Manganese metal is gray-white, resembling iron, but is harder and very brittle. The metal is reactive chemically, and decomposes cold water slowly. Manganese is widely distributed throughout the animal kingdom. It is an important trace element and may be essential for utilisation of vitamin B. Manganese is present in quantity the floor of oceans.

  • WebElements Periodic Table » Manganese » geological ...

    Manganese is not found as the free metal in nature, however manganese minerals consisting of oxides, silicates, and carbonates are the common. Most Manganese is obtained from ores in Australia, Brazil, Gabon, India, Russia, and South Africa. Manganese nodules on ocean floors holds contain about 24% manganese.

  • How was the element Manganese discovered ? Yahoo Answers

    Nov 26, 2009  Proposed to be an element by Carl Wilhelm Scheele in 1774, manganese was discovered by Johan Gottlieb Gahn, a Swedish chemist, by heating the mineral pyrolusite (MnO2) in the presence of charcoal later that year.

  • Manganese - Periodic table

    Manganese is the twelfth most abundant element in the earth’s crust and it is an essential trace element for all life on earth. ... BBC Report, Neanderthal ‘make-up’ containers discovered 9 January 2010. David Dingledy, Decolorization of glass., J. Chem. Educ., 1965, 42 (3), p160.

  • WebElements Periodic Table » Manganese » the essentials

    Manganese metal is gray-white, resembling iron, but is harder and very brittle. The metal is reactive chemically, and decomposes cold water slowly. Manganese is widely distributed throughout the animal kingdom. It is an important trace element and may be essential for utilisation of vitamin B. Manganese is present in quantity the floor of oceans.

  • How was the element Manganese discovered ? Yahoo Answers

    Nov 26, 2009  Proposed to be an element by Carl Wilhelm Scheele in 1774, manganese was discovered by Johan Gottlieb Gahn, a Swedish chemist, by heating the mineral pyrolusite (MnO2) in the presence of charcoal later that year.

  • where was manganese discovered - Mining

    Dec 05, 2012  Where Was the Element Manganese Discovered – Ask Jeeves. Proposed to be an element by Carl Wilhelm Scheele in 1774, manganese was discovered by Johan Gottlieb Gahn, a Swedish chemist, by heating the mineral »More detailed

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  • Manganese: Uses, Side Effects, Interactions, Dosage, and ...

    For low manganese levels in the body ... Salomon H, et al. Minerals discovered in Paleolithic black pigments by transmission electron microscopy and micro-X-ray absorption near-edge structure ...

  • Manganese: Facts, Uses Benefits Study

    Manganese Facts. Manganese is a silvery-grey metal. It has an atomic symbol of Mn, and its atomic mass is 54.94 amu (atomic mass units). The atomic number of manganese is

  • Top 10 Foods Highest in Manganese - myfooddata

    Antioxidant Protection - Manganese superoxide dismutase (MnSOD) is the principal antioxidant used during energy production in the mitochondria (the powerhouse of our cells). (Osteoporosis Protection (*Controversial) - Two recent studies have found that women with osteoporosis have lower blood manganese levels than women without osteoporosis. This finding is a correlation and does not

  • WebElements Periodic Table » Manganese » geological ...

    Manganese is not found as the free metal in nature, however manganese minerals consisting of oxides, silicates, and carbonates are the common. Most Manganese is obtained from ores in Australia, Brazil, Gabon, India, Russia, and South Africa. Manganese nodules on ocean floors holds contain about 24% manganese.

  • Manganese Nodule Discovery Points to Genesis Flood The ...

    Mar 05, 2015  Manganese nodules are found scattered on the ocean floor. Though generally composed of manganese (hence the name), they can also be made of iron, nickel, copper, and other metals. This recently discovered batch, located several hundred miles east of Barbados, is the largest yet discovered in the Atlantic Ocean. 1

  • Manganese Deficiency: Symptoms, Causes, Diagnosis, and ...

    Manganese is a naturally occurring element and an essential mineral nutrient. It’s important for maintaining good health, though manganese can be toxic at high levels.

  • Metal Profile: Manganese (MN Element)

    The use of manganese compounds stretches back more than 17,000 years. Ancient cave paintings, including those in Lascaux France, derive their color from manganese dioxide. Manganese metal, however, was not isolated until 1774 by Johan Gottlieb Gahn, three years after his colleague Carl Wilhelm Scheele had identified it as a unique element.

  • 13 Creative Catchy Manganese Slogans

    Manganese was discovered by Torbern Olof Bergman in 1770. It is a chemical element with symbol Mn and atomic number 25. It is not found as a free element in nature; it is often found in combination with iron and in many minerals. Below are the 13 Creative Catchy Manganese Slogans for chemistry assignments and science []

  • Vast Bed of Metal Balls Found in Deep Sea Live Science

    Manganese nodules discovered on the deep seafloor in January 2015. (Image credit: Thomas Walter) Manganese nodules have been found in every ocean, but are most common in the Pacific Ocean. The ...

  • When was manganese discovered - Doctor answers on ...

    When was manganese discovered Download Here Free HealthCareMagic App to Ask a Doctor All the information, content and live chat provided on the site is intended to be for informational purposes only, and not a substitute for professional or medical advice.

  • Manganese Deficiency: Symptoms, Causes, Diagnosis, and ...

    Manganese is a naturally occurring element and an essential mineral nutrient. It’s important for maintaining good health, though manganese can be toxic at high levels.

  • Metal Profile: Manganese (MN Element)

    The use of manganese compounds stretches back more than 17,000 years. Ancient cave paintings, including those in Lascaux France, derive their color from manganese dioxide. Manganese metal, however, was not isolated until 1774 by Johan Gottlieb Gahn, three years after his colleague Carl Wilhelm Scheele had identified it as a unique element.

  • 13 Creative Catchy Manganese Slogans

    Manganese was discovered by Torbern Olof Bergman in 1770. It is a chemical element with symbol Mn and atomic number 25. It is not found as a free element in nature; it is often found in combination with iron and in many minerals. Below are the 13 Creative Catchy Manganese Slogans for chemistry assignments and science []

  • Vast Bed of Metal Balls Found in Deep Sea Live Science

    Manganese nodules discovered on the deep seafloor in January 2015. (Image credit: Thomas Walter) Manganese nodules have been found in every ocean, but are most common in the Pacific Ocean. The ...

  • When was manganese discovered - Doctor answers on ...

    When was manganese discovered Download Here Free HealthCareMagic App to Ask a Doctor All the information, content and live chat provided on the site is intended to be for informational purposes only, and not a substitute for professional or medical advice.

  • Manganese - an overview ScienceDirect Topics

    Manganese is capable of existing in a number of oxidation states, and limited data suggest that it may undergo changes in oxidation state in the body. The oxidation state of the manganese ion in several enzymes seems to be Mn(III) (Leach and Lilburn, 1978; Utter, 1976), whereas most manganese intake from the environments is either Mn(II) or Mn(IV).

  • Top 10 Manganese Producing Countries - WorldAtlas

    Apr 19, 2018  The Asian economic giant recently discovered a massive manganese ore reserve in the country’s Guizhou Province. The discovery, which was made in early 2017, is thought to contain an estimated 0.203 billion tons of the ore, whose total value is estimated to be over $10 billion. When exploited, the manganese ore reserve will be of great benefit ...

  • Manganese: Health benefits and side effects

    Jul 02, 2019  Manganese is a trace mineral that contributes to several bodily functions. Most people can get adequate amounts of manganese from their diet. Learn more about its

  • where was chlorine discovered? Yahoo Answers

    Jan 25, 2011  Chlorine compounds have been important to humans for thousands of years. Ordinary table salt, for example, is sodium chloride (NaCl). Still, chlorine was not recognized as an element until 1774, when Scheele was studying the mineral pyrolusite. Pyrolusite consists primarily of manganese dioxide (MnO 2 ).

  • Manganese In Drinking Water - DENR

    Manganese is a common, naturally-occurring mineral found in rocks, soil, groundwater, and surface water. Manganese is a natural component of most foods. Manganese is an essential nutrient and eating a small amount of it each day is important to stay healthy.

  • Manganese nodules « World Ocean Review

    INDIAN OCEAN: So far only a single large area of manganese nodules has been discovered here, with an area comparable to that of the Penrhyn Basin. It is located in the central Indian Ocean. Each square metre of the sea floor here contains around 5 kilograms of manganese nodules.

  • Manganese Toxicity Upon Overexposure: a Decade in Review

    Introduction. Manganese (Mn) is the 12th most abundant element on the earth [].As a transition metal, Mn exists in more than five valence states, with a majority as Mn 2+ or Mn 3+ [].In the environment, it is found mainly in its oxidized chemical forms, as MnO 2 or Mn 3 O 4 [].Mn is essential to human health, acting as a co-factor in the active centers of various enzymes, and is required for ...

  • 10 Top Manganese-producing Countries INN

    A manganese reserve containing 708 million tonnes of manganese ore was discovered in the Guizhou province in 2017, the biggest deposit in Asia. With the addition of the massive discovery, China ...

  • 10 Evidence-Based Benefits of Manganese

    Aug 31, 2018  Manganese is a trace mineral needed for the normal functioning of your brain, nervous system and many of your body’s enzyme systems. Here are 10 evidence-based benefits of manganese.