manganese uses facts compounds britannica

33 Selenium Facts for Kids, Students and Teachers

The compound selenium dioxide (SeO 2) is used during the electrowinning of manganese to reduce the power usage needed to operate electrolysis cells. The compound zinc selenide (ZnSe) was the first compound used in LEDs for blue light, but the use of zinc selenide has faded in favor of gallium nitride.

34 Zinc Facts for Kids, Students and Teachers

34 Zinc Facts for Kids. Zinc is a chemical element on the periodic table. Zinc is a metal that is brittle with a silver-gray color. Zinc is believed to have been named by the alchemist Paracelsus and named after the German word Zinke which translates to prong, tooth. Zinc was first ARSENIC AND ARSENIC COMPOUNDS - Arsenic, Metals, Arsenic and arsenic compounds have been produced and used commercially for centuries. Current and historical uses of arsenic include pharmaceuticals, wood preservatives, agricultural chemicals, and applications in the mining, metallurgical, glass-making, and semiconductor industries. Arsenic was used in some medicinal applications until the 1970s.

Calcium oxide CaO - PubChem

Calcium oxide appears as an odorless, white or gray-white solid in the form of hard lumps. A strong irritant to skin, eyes and mucous membranes. Used in insecticides and fertilizers. Calcium oxide is a member of the class of calcium oxides of calcium and oxygen in a 1:1 ratio. It has a role as a fertilizer. Facts About the Mango Tree:Description, Types, and Uses Sep 18, 2020 · Of course, the flowers and fruits of the mango tree are used in cooking. The ripe mango fruit is eaten as it is and used to make juices, chutneys, desserts, and jams. The unripe fruit is used to make pickles. Health Benefits of Mangoes. Mangoes contain vitamins A, B, C, E, and K and minerals such as magnesium, potassium, and manganese.

Hydrogen sulfide H2S - PubChem

Hydrogen sulfide can also result from industrial activities, such as food processing, coke ovens, kraft paper mills, tanneries, and petroleum refineries.Hydrogen sulfide is a flammable, colorless gas with a characteristic odor of rotten eggs. It is commonly known as Magnesium Element History, Facts, Physical & Chemical

• OccurrencePhysical CharacteristicsChemical CharacteristicsUses and SignificanceHealth HazardsIsotopes of MagnesiumVanadium History, Uses, Facts, Physical & Chemical
  • OccurrencePhysical CharacteristicsChemical CharacteristicsSignificance and UsesHealth EffectsIsotopes of VanadiumTungsten:Properties, Production, and Applications - Matmatch
    • Properties of TungstenProduction and Processing of TungstenTungsten Products and UsesFuture Applications of TungstenTungsten is a light grey or silvery-white metal that constitutes one of the toughest metals can be found in nature. The density of tungstenis significantly high, in fact, among the highest of all metals . The table below shows some of the key features of each of tungsten and tungsten carbide. Notice how the addition of carbon increased its hardness significantly but lowered its melting point and thermal conductivity. Table 1. Comparison between tungsten and tungsten carbide Tungsten has the highest Technetium Encyclopedia
      • OverviewDiscovery and NamingPhysical PropertiesChemical PropertiesOccurrence in NatureIsotopesExtractionUsesTechnetium as A Medical ToolHealth EffectsTechnetium is the only element below uranium that does not exist on Earth. It is a synthetic (man-made) element produced in a particle accelerator. For many years, chemists knew that an element with atomic number 43 must exist, based on an empty spot in the periodic table. The periodic tableis a chart that shows how chemical elements are related to each other. By 1925, only five empty boxes remained. Five elements were still to be discovered. A number of scientists tried to find those elements. In many casepottery and porcelain - Students Britannica Kids They include the blue-and-white wares, huge and heavy vessels for the imperial temples, and thin and delicate white eggshell porcelain. Great beauty in polychrome decoration was attained in the later Qing, or Manchu, dynasty (16441911/12), particularly in the reign of Emperor Kangxi (16611722).

        Manganese oxide chemical compound Britannica

        with electrodes of zinc and manganese dioxide (e.g., the common flashlight dry cell), one finds that a chemical equivalent of zinc weighs 32.5 grams (1.4 ounces) and that of manganese dioxide about 87 grams (3.1 ounces). The discharge of one equivalent weight of each of these electrodes will cause 32.5 Milk thistle Uses, Side Effects & Warnings - DrugsSep 29, 2020 · Common side effects may include:indigestion, bloating, gas, stomach pain; diarrhea; or. nausea, loss of appetite. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. Milk thistle side effects (more detail)

        Propionic acid CH3CH2COOH - PubChem

        Compound Is Canonicalized:Yes:Computed by PubChem (release 2019.01.04) PubChem. 3.2 Experimental Properties. Help. New Window. 3.2.1 Physical Description. Help. New Window. Propionic acid is a colorless liquid with a sharp rancid odor. Produces irritating vapor. (USCG, 1999) U.S. Coast Guard. 1999. Chemical Hazard Response Information System Spiegeleisen Definition of Spiegeleisen at DictionarySpiegeleisen definition, a lustrous, crystalline pig iron containing a large amount of manganese, sometimes 15 percent or more, used in making steel. See more.

        alloy - Students Britannica Kids Homework Help

        Some special-purpose steel alloys; types of steel typical uses* carbon steels *Only some examples. **Ordinarily containing 1 percent or less of carbon and limited amounts of manganese, silicon and copper, and oily residues of phosphorus and sulfur. aluminum - Students Britannica Kids Homework HelpAluminum-manganese alloys exhibit exceptional resistance to weathering and corrosion and so are commonly used for siding, roofing, window frames, and other construction hardware as well as for storage tanks and highway signs. Aluminum-based magnesium alloys have many of the same properties plus superior weldability.

        battery - Students Britannica Kids Homework Help

        The most common household alkaline cells have an anode of powdered zinc and a cathode of manganese dioxide. Another class of batteries uses lithium as the anode. Lithium batteries are lightweight, have a very high energy output, perform well in devices that drain power in surges (such as cameras) or continuously, and have a very long shelf life. bismuth Properties, Uses, Symbol, & Facts BritannicaA bismuthmanganese alloy has been found effective as a permanent magnet. Small concentrations of bismuth improve the machinability of aluminum , steel, stainless steels, and other alloys and suppress the separation of graphite from malleable cast iron .

        chromium Uses, Properties, & Facts Britannica

        Chromium, chemical element of Group 6 (VIb) of the periodic table, a hard steel-gray metal that takes a high polish and is used in alloys to increase strength and corrosion resistance. Chromium is a relatively abundant element in Earths crust. Its name is from the Greek for color, for the colorations of its compounds.Manganese processing BritannicaManganese processing, preparation of the ore for use in various products. manganese. Manganese. Tomihahndorf. Manganese (Mn) is a hard, silvery white metal with a melting point of 1,244 °C (2,271 °F). Ordinarily too brittle to be of structural value itself, it is an essential agent in steelmaking, in which it removes impurities such as sulfur and oxygen and adds important physical properties to the metal.