manganese dioxide wikipedia the free encyclopedia

Manganese dioxide - Simple English Wikipedia, the free ...

Manganese dioxide, also known as manganese(IV) oxide, is a chemical compound of manganese and oxygen. It contains manganese in the +4 oxidation state. Its chemical formula is MnO 2. It is black and powdery. It is used as a depolarizer in alkaline batteries and Leclanche batteries. It is found naturally as the mineral pyrolusite.

Talk:Manganese dioxide - Wikipedia

And the term manganese (IV) oxide is in a sense ambiguous because the stoichiometry is not explicit. Professional journals and monographs refer to this material as manganese dioxide, not manganese(IV) oxide. For an analogous case, please see the discussion at Talk:Osmium tetroxide. There was no discussion for titanium dioxide.

Manganese - Simple English Wikipedia, the free encyclopedia

Isotopes. Manganese that is found in nature is made up of one stable isotope, which is manganese-55.Manganese has many radioisotopes ranging from manganese-44 to manganese-69. The most stable radioisotope is manganese-53. It has a half-life of 3.7 million years.. Occurrence. The Earth's crust contains about 1000 ppm of manganese. It is the 12th

Manganese dioxide - Wikipedia

Manganese(IV) oxide 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 2 is for dry-cell batteries, such as the alkaline battery and the zinc-carbon battery. MnO 2 is also used as a pigment and as a precursor to other manganese ...

Manganese dioxide - Simple English Wikipedia, the free ...

Manganese dioxide, also known as manganese(IV) oxide, is a chemical compound of manganese and oxygen.It contains manganese in the +4 oxidation state.Its chemical formula is MnO 2.. It is black and powdery. It is used as a depolarizer in alkaline batteries and Leclanche batteries.It is found naturally as the mineral pyrolusite.

Manganese(II) oxide - Simple English Wikipedia, the free ...

Manganese(II) oxide is a chemical compound. It contains manganese in its +2 oxidation state. Its chemical formula is MnO. It is made by reduction of manganese(IV) oxide by hydrogen, carbon monoxide, or methane. It is also made by heating manganese carbonate. Related pages. Manganese; Manganese dioxide; Iron(II) oxide

Manganese - Simple English Wikipedia, the free encyclopedia

Manganese is a silvery-gray metal and is part of the group known as the transition metals.It is similar to iron. It is hard to melt, but easy to oxidize.Manganese forms chemical compounds in several oxidation states: +2, +4, and +7 are the most common.Manganese compounds can be black, brown, pink, red, green, blue, and purple.

Manganese(VII) oxide - Simple English Wikipedia, the free ...

Manganese(VII) oxide, also known as permanganic acid and manganese heptoxide, is a chemical compound.The manganese is in its +7 oxidation state.Its chemical formula is Mn 2 O 7.. This is about the only +7 oxidation state compound of manganese that is not a permanganate.Its chemical formula is Mn 2 O 7.It is either a dark red or green oil.

Manganese - Wikipedia, the free encyclopedia

Manganese From Wikipedia, the free encyclopedia Manganese ( /ˈmæŋɡəniːz/ MANG-gə-neez) is a chemical element, designated by the symbol Mn . It has the atomic number 25. It is found as a free element in nature (often in combination with iron), and in many minerals. As a free element, manganese is a metal with important industrial

Manganese dioxide - definition of ... - The Free Dictionary

Define manganese dioxide. manganese dioxide synonyms, manganese dioxide pronunciation, manganese dioxide translation, English dictionary definition of manganese dioxide. n. A black crystalline compound, MnO2, that is a strong oxidant and is used as a

Lead dioxide - Wikipedia

Lead dioxide has two major polymorphs, alpha and beta, which occur naturally as rare minerals scrutinyite and plattnerite, respectively.Whereas the beta form had been identified in 1845, α-PbO 2 was first identified in 1946 and found as a naturally occurring mineral 1988. The alpha form has orthorhombic symmetry, space group Pbcn (No. 60), Pearson symbol oP12, lattice constants a = 0.497 nm ...

Maganese Article about Maganese by The Free Dictionary

Wikipedia Encyclopedia. ... Both manganous and manganic ions form acidic solutions. Manganese is found in the +4 state largely in manganese dioxide, MnO 2; the +4 oxidation state is amphoteric, ... The following article is from The Great Soviet Encyclopedia (1979). It

Chlorine - Wikipedia

Chlorine is a chemical element with the symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Chlorine is a yellow-green gas at room temperature. It is an extremely reactive element and a strong oxidising agent: among the elements, it has the highest electron ...

Manganese oxide - definition of Manganese oxide by The ...

Manganese oxide synonyms, Manganese oxide pronunciation, Manganese oxide translation, English dictionary definition of Manganese oxide. n. A black crystalline compound, MnO2, that is a strong oxidant and is used as a depolarizer of dry-cell batteries and in textile dyeing.

Oxygen - Wikipedia

Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.After hydrogen and helium, oxygen is the third-most abundant element in the universe by mass. At standard temperature and pressure, two ...

Manganese_dioxide - chemeurope

Manganese(IV) oxide is the chemical compound MnO 2, commonly called manganese dioxide.This blackish or brown solid occurs naturally as the mineral pyrolusite, which is the main ore of manganese.It is also present in manganese nodules.The principal use for MnO 2 is for dry-cell batteries, such as the alkaline battery and the zinc-carbon battery.In 1976 this application accounted for 500,000 ...

Category:Manganese compounds - Simple English Wikipedia ...

Wikimedia Commons has media related to Manganese compounds.: Subcategories. This category has only the following subcategory. M Manganates‎ (4 P)

Manganese dioxide - Wikipedia

Manganese(IV) oxide 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 2 is for dry-cell batteries, such as the alkaline battery and the zinc-carbon battery. MnO 2 is also used as a pigment and as a precursor to other manganese ...

Manganese(II) oxide - Simple English Wikipedia, the free ...

Manganese(II) oxide is a chemical compound.It contains manganese in its +2 oxidation state.Its chemical formula is MnO. It is made by reduction of manganese(IV) oxide by hydrogen, carbon monoxide, or methane.It is also made by heating manganese carbonate.

Manganese dioxide Article about manganese dioxide by The ...

In the past decade, manganese dioxide has been studied as one of the most promising cathode catalyst for alkaline fuel cell and metal-air batteries application [15], and several research groups have previously shown that nonprecious manganese dioxide electrocatalysts were highly efficient for catalyzing ORR and lowering overall cost at the same time [16-18].

Manganese(VII) oxide - Simple English Wikipedia, the free ...

Manganese(VII) oxide, also known as permanganic acid and manganese heptoxide, is a chemical compound.The manganese is in its +7 oxidation state.Its chemical formula is Mn 2 O 7.. This is about the only +7 oxidation state compound of manganese that is not a permanganate.Its chemical formula is Mn 2 O 7.It is either a dark red or green oil.

Manganese - Wikipedia, the free encyclopedia

Manganese From Wikipedia, the free encyclopedia Manganese ( /ˈmæŋɡəniːz/ MANG-gə-neez) is a chemical element, designated by the symbol Mn . It has the atomic number 25. It is found as a free element in nature (often in combination with iron), and in many minerals. As a free element, manganese is a metal with important industrial

Manganese dioxide - definition of ... - The Free Dictionary

Define manganese dioxide. manganese dioxide synonyms, manganese dioxide pronunciation, manganese dioxide translation, English dictionary definition of manganese dioxide. n. A black crystalline compound, MnO2, that is a strong oxidant and is used as a

Manganese(II) sulfate - Simple English Wikipedia, the free ...

It contains manganese and sulfate ions. Its chemical formula is MnSO 4. It is a pink crystalline solid. It normally is bonded with some water molecules. It is part of a process to make manganese metal. It can be made separately though. If sulfur dioxide and manganese dioxide are reacted, it produces manganese(II

Maganese Article about Maganese by The Free Dictionary

Wikipedia Encyclopedia. ... Both manganous and manganic ions form acidic solutions. Manganese is found in the +4 state largely in manganese dioxide, MnO 2; the +4 oxidation state is amphoteric, ... The following article is from The Great Soviet Encyclopedia (1979). It

Manganese oxide - definition of Manganese oxide by The ...

Manganese oxide synonyms, Manganese oxide pronunciation, Manganese oxide translation, English dictionary definition of Manganese oxide. n. A black crystalline compound, MnO2, that is a strong oxidant and is used as a depolarizer of dry-cell batteries and in textile dyeing.

Chlorine - Wikipedia

Chlorine is a chemical element with the symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Chlorine is a yellow-green gas at room temperature. It is an extremely reactive element and a strong oxidising agent: among the elements, it has the highest electron ...

Oxygen - Wikipedia

Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.After hydrogen and helium, oxygen is the third-most abundant element in the universe by mass. At standard temperature and pressure, two ...

Manganese_dioxide - chemeurope

Manganese(IV) oxide is the chemical compound MnO 2, commonly called manganese dioxide.This blackish or brown solid occurs naturally as the mineral pyrolusite, which is the main ore of manganese.It is also present in manganese nodules.The principal use for MnO 2 is for dry-cell batteries, such as the alkaline battery and the zinc-carbon battery.In 1976 this application accounted for 500,000 ...

Manganese (IV) oxide - definition of ... - The Free Dictionary

Manganese (IV) oxide synonyms, Manganese (IV) oxide pronunciation, Manganese (IV) oxide translation, English dictionary definition of Manganese (IV) oxide. n. A black crystalline compound, MnO2, that is a strong oxidant and is used as a depolarizer of dry-cell batteries and in textile dyeing.

Manganese(IV) oxide Article about Manganese(IV) oxide by ...

Find out information about Manganese(IV) oxide. MnO2 A black, crystalline, water-insoluble compound, decomposing to manganese sesquioxide, Mn2O3, and oxygen