The structure of the manganate(VII) anion

A permanganate is the general name for a chemical compound containing the manganate(VII) ion, (MnO₄⁻). Because manganese is in the +7 oxidation state, the manganate(VII) ion is a strong oxidizer. Image File history File links Download high-resolution version (1100x890, 31 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Permanganate ... Image File history File links Download high-resolution version (1100x890, 31 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Permanganate ... Look up chemical compound in Wiktionary, the free dictionary. ... This article is about the electrically charged particle. ... In chemistry, the oxidation state is an indicator of the degree of oxidation of an atom in a chemical compound. ...

In an acidic solution, manganate(VII) is reduced to the colourless +2 oxidation state of the Manganese(II) (Mn²⁺) ion. For other uses, see acid (disambiguation). ... General Name, symbol, number manganese, Mn, 25 Chemical series transition metals Group, period, block 7, 4, d Appearance silvery metallic Standard atomic weight 54. ...

16 H₃O ⁺ + 2 MnO₄⁻ + 10 Cl⁻ → 2 Mn²⁺ + 5 Cl₂ + 24 H₂O

6 H⁺ + 2 MnO₄⁻ + 5 HCOOH → 8 H₂O + 2 Mn²⁺ + 5 CO₂

In a basic solution, manganate(VII) is either reduced to the brown +4 oxidation state of MnO₂ or to the green +6 oxidation state of MnO₄²⁻. In chemistry, hydronium is the common name for the cation H3O+ derived from protonation of water. ... The chloride ion is formed when the element chlorine picks up one electron to form an anion (negatively-charged ion) Cl−. The salts of hydrochloric acid HCl contain chloride ions and can also be called chlorides. ... General Name, symbol, number manganese, Mn, 25 Chemical series transition metals Group, period, block 7, 4, d Appearance silvery metallic Standard atomic weight 54. ... General Name, symbol, number chlorine, Cl, 17 Chemical series nonmetals Group, period, block 17, 3, p Appearance yellowish green Standard atomic weight 35. ... In chemistry, hydronium is the common name for the cation H3O+ derived from protonation of water. ... General Name, symbol, number manganese, Mn, 25 Chemical series transition metals Group, period, block 7, 4, d Appearance silvery metallic Standard atomic weight 54. ... Carbon dioxide (chemical formula: ) is a chemical compound composed of two oxygen atoms covalently bonded to a single carbon atom. ... Acids and bases: Acid-base extraction Acid-base reaction Acid dissociation constant Acidity function Buffer solutions pH Proton affinity Self-ionization of water Acids: Lewis acids Mineral acids Organic acids Strong acids Superacids Weak acids Bases: Lewis bases Organic bases Strong bases Superbases Non-nucleophilic bases Weak bases edit In...

4 OH⁻ + 2 MnO₄⁻ + 3 C₂O₄²⁻ → 2 MnO₂ + 6 CO₃²⁻ + 2 H₂O

3 OH⁻ + 2 MnO₄⁻ + HSO₃⁻ → 2 MnO₄²⁻ + SO₄²⁻ + 2 H₂O

Hydroxide is a polyatomic ion consisting of oxygen and hydrogen: OH− It has a charge of −1. ... An oxalate (called also: ethanedioate) is a salt or ester of oxalic acid. ... Manganese(IV) oxide is the chemical compound MnO2, more usually called manganese dioxide. ... Ball-and-stick model of the carbonate ion, CO32− For other meanings, see Carbonate (disambiguation) In chemistry, a carbonate is a salt or ester of carbonic acid. ... Hydroxide is a polyatomic ion consisting of oxygen and hydrogen: OH− It has a charge of −1. ... The bisulfite ion is the HSO3- ion. ... The manganate ion is MnO42- and a manganate is any compound that contains the MnO42- group. ... The sulfate anion, SO42− The structure and bonding of the sulfate ion In inorganic chemistry, a sulfate (IUPAC-recommended spelling; also sulphate in British English) is a salt of sulfuric acid. ...

Production

Permanganates may be produced by oxidation of manganese compounds by strong oxidizing agents, for instance, sodium hypochlorite or lead dioxide: General Name, symbol, number manganese, Mn, 25 Chemical series transition metals Group, period, block 7, 4, d Appearance silvery metallic Standard atomic weight 54. ... Sodium hypochlorite is a chemical compound with the formula NaClO. Sodium hypochlorite solution, commonly known as bleach, is frequently used as a disinfectant and as a bleaching agent. ... Lead(IV) oxide, PbO2, also plumbic oxide and lead dioxide, is an oxide of lead, with lead in oxidation state +4. ...

2 MnCl₂ + 5 NaClO + 6 NaOH → 2 NaMnO₄ + 9 NaCl+ 3 H₂O

2 MnSO₄ + 5 PbO₂+ 3 H₂SO₄ → 2 HMnO₄+ 5 PbSO₄ + 2 H₂O

Or by dismutation of manganates: Sodium hypochlorite is a chemical compound with the formula NaClO. Sodium hypochlorite solution, commonly known as bleach, is frequently used as a disinfectant and as a bleaching agent. ... Sodium hydroxide (NaOH), also known as lye, caustic soda and (incorrectly, according to IUPAC nomenclature)[1] sodium hydrate, is a caustic metallic base. ... Sodium permanganate is the inorganic chemical compound NaMnO4. ... Please wikify (format) this article or section as suggested in the Guide to layout and the Manual of Style. ... Lead(IV) oxide, PbO2, also plumbic oxide and lead dioxide, is an oxide of lead, with lead in oxidation state +4. ... Sulfuric acid, (also known as sulphuric acid) H2SO4, is a strong mineral acid. ... Dismutation is a chemical reaction in which a single compound serves both as an oxidizing and a reducing agent. ... The manganate ion is MnO42- and a manganate is any compound that contains the MnO42- group. ...

3 Na₂MnO₄ + 2 H₂O → 2 NaMnO₄ + MnO₂ + 4 NaOH

Sodium permanganate is the inorganic chemical compound NaMnO4. ... Manganese(IV) oxide is the chemical compound MnO2, commonly called manganese dioxide. ...

Properties

Manganates(VII) are salts of permanganic acid. Manganate(VII) is a strong oxidizer, and similar to perchlorate. It is therefore in common use in qualitative analysis that involves redox reactions(permanganometry).Besides this, it is stable. This article is about common table salt. ... Permanganic acid, HMnO4, is an oxygen acid of manganese. ... An oxidizing agent is a substance that oxidizes another substance in electrochemistry or redox chemical reactions in general. ... Perchlorates are the salts derived from perchloric acid (HClO4). ...

It is a useful reagent, though with organic compounds, it may just destroy them entirely.

Manganates(VII) are not very thermically stable. For instance, potassium permanganate decomposes at 230 °C: Potassium permanganate is the chemical compound KMnO4. ...

2 KMnO₄ → K₂MnO₄ + MnO₂ + O₂

Potassium permanganate is the chemical compound KMnO4. ... Potassium permanganate (KMnO4) is an inorganic chemical compound composed of potassium (K+) and permanganate (MnO4-) ions. ... Manganese(IV) oxide is the chemical compound MnO2, commonly called manganese dioxide. ... This article is about the chemical element and its most stable form, or dioxygen. ...

Compounds

• Calcium permanganate, Ca(MnO₄)₂
• Potassium permanganate, KMnO₄
• Sodium permanganate, NaMnO₄

See category for a bigger list. Potassium permanganate is the chemical compound KMnO4. ... Sodium permanganate is the inorganic chemical compound NaMnO4. ...

External links

• National Pollutant Inventory - Manganese and compounds Fact Sheet
• Companies that use permanganate to remediate hazardous chemicals:ORIN