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  1. en.wikipedia.org › wiki › ManganeseManganese - Wikipedia

    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. It improves ...

  2. de.wikipedia.org › wiki › Mangan(IV)-oxidMangan(IV)-oxid – Wikipedia

    Mangan (IV)-oxid, auch Mangandioxid oder Braunstein, ist ein Oxid des Mangans mit der Verhältnisformel MnO 2. Mangan liegt hier in der Oxidationsstufe +4 vor. Aufgrund seines Aussehens (dunkelbraun, glänzt seidig, körnig bis erdig) wird es auch Magnesia nigra, schwarzes Magnesia, oder etwas unpräzise als Braunstein bezeichnet.

    • 215-202-6
    • Mangan(IV)-oxid
    • schwarz-brauner Feststoff
    • MnO₂

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  4. www.britannica.com › science › manganeseManganese | Uses, Facts, & Compounds | Britannica

    1. Apr. 2024 · Manganese is a silvery white, hard, brittle metal that is essential to steelmaking and plant growth. Learn about its properties, occurrence, uses, and compounds from Britannica, the authoritative source of science and tech information.

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  5. www.rsc.org › periodic-table › elementManganese - Element information, properties and uses | Periodic...

    Created by video journalist Brady Haran working with chemists at The University of Nottingham. Element Manganese (Mn), Group 7, Atomic Number 25, d-block, Mass 54.938. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

  6. chem.libretexts.org › Bookshelves › Inorganic_ChemistryChemistry of Manganese - Chemistry LibreTexts

    Introduction. In pure form Manganese is a hard, brittle, gray-white metal. It is best known as an alloying agent in steel. It enhances the ability to hot-work steel and increases resistance to impact. The Roman empire used manganese in their weapons and they were able to defeat their enemies.