"MnO4" redirects here. For the manganate ion MnO2− 4, see Manganate.
Permanganate
Names
Systematic IUPAC name
Permanganate
Identifiers
CAS Number
14333-13-2
3D model (JSmol)
Interactive image
ChEBI
CHEBI:25939
ChemSpider
22811
PubChem CID
24401
UNII
2BL953CCZ2
CompTox Dashboard (EPA)
DTXSID90912340
InChI
InChI=1S/Mn.4O/q;;;;-1
Key: NPDODHDPVPPRDJ-UHFFFAOYSA-N
SMILES
[O-] [Mn](=O)(=O)=O
Properties
Chemical formula
MnO− 4
Molar mass
118.934 g·mol−1
Conjugate acid
Permanganic acid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chemical compound
A permanganate (/pərˈmæŋɡəneɪt,pɜːr-/)[1] is a chemical compound with the manganate(VII) ion, MnO− 4, the conjugate base of permanganic acid. Because the manganese atom has a +7 oxidation state, the permanganate(VII) ion is a strong oxidising agent. The ion is a transition metal ion with a tetrahedral structure.[2] Permanganate solutions are purple in colour and are stable in neutral or slightly alkaline media. The exact chemical reaction depends on the carbon-containing reactants present and the oxidant used. For example, trichloroethane (C2H3Cl3) is oxidised by permanganate ions to form carbon dioxide (CO2), manganese dioxide (MnO2), hydrogen ions (H+), and chloride ions (Cl−).[3]
Potassium permanganate is an inorganic compound with the chemical formula KMnO4. It is a purplish-black crystalline salt, that dissolves in water as K+...
A permanganate (/pərˈmæŋɡəneɪt, pɜːr-/) is a chemical compound with the manganate(VII) ion, MnO− 4, the conjugate base of permanganic acid. Because the...
Sodium permanganate is the inorganic compound with the formula NaMnO4. It is closely related to the more commonly encountered potassium permanganate, but...
permanganate is an inorganic compound with the chemical formula LiMnO4. It can be produced by the reaction of lithium sulfate and barium permanganate...
Caesium permanganate is the permanganate salt of caesium, with the chemical formula CsMnO4. Caesium permanganate can be formed by the reaction of potassium...
Ammonium permanganate is the chemical compound NH4MnO4, or NH3·HMnO4. It is a water soluble, violet-brown or dark purple salt. Ammonium permanganate was first...
The permanganate index is an assessment of water quality. It involves the detection of oxidation by potassium permanganate in an acid medium under hot...
Calcium permanganate is an oxidizing agent and chemical compound with the chemical formula Ca(MnO4)2. This salt consists of the metal calcium and two permanganate...
between potassium permanganate and glycerol is often used to demonstrate the powerful oxidizing property of potassium permanganate, especially in the...
Silver permanganate is an inorganic compound with the chemical formula AgMnO4. This salt is a purple crystal adopting a monoclinic crystal system. It decomposes...
Magnesium permanganate is an inorganic compound with the chemical formula Mg(MnO4)2. It can be used as an oxidant. Magnesium permanganate hexahydrate...
Rubidium permanganate is the permanganate salt of rubidium, with the chemical formula RbMnO 4. Rubidium permanganate can be formed by the reaction of...
oxoacid has been isolated as its dihydrate. It is the conjugate acid of permanganate salts. It is the subject of few publications and its characterization...
Barium permanganate is a chemical compound, with the formula Ba(MnO4)2. It forms violet to brown crystals that are sparingly soluble in water. Barium permanganate...
Cadmium permanganate is an inorganic compound with the chemical formula Cd(MnO4)2. It can form the hexahydrate Cd(MnO4)2·6H2O. Cadmium permanganate can be...
synthesis of potassium permanganate (KMnO4), a common chemical. Occasionally, potassium manganate and potassium permanganate are confused, but each compound's...
familiar in the laboratory in the form of the deep violet salt potassium permanganate. It occurs at the active sites in some enzymes. Of particular interest...
Glauber reported the first description of the production of potassium permanganate when he noted that manganese dioxide (as the mineral pyrolusite) could...
and it may be used as a primary standard for standardizing potassium permanganate (KMnO4) solutions. The mineral form of sodium oxalate is natroxalate...
titration of the analyte with potassium permanganate solution and then the standardization of potassium permanganate solution with standard sodium oxalate...
range of 1–100. The Kappa number is a measurement of standard potassium permanganate solution that the pulp will consume. The measurement is inflated by the...
compounds. Other manganates include hypomanganate or manganate(V), MnO3− 4, permanganate or manganate(VII), MnO− 4, and the dimanganate or dimanganate(III) Mn...
strong oxidants such as potassium dichromate, Jones reagent, potassium permanganate, or sodium chlorite. The method is more suitable for laboratory conditions...
drops of glycerol (mild reducing agent) are added to powdered potassium permanganate (strong oxidizing agent), a violent redox reaction accompanied by self-ignition...
Potassium permanganate (KMnO4) is most commonly used as the oxidant. In clandestine laboratories, synthesizing methcathinone using potassium permanganate is...
of a concentrated solution of potassium permanganate in 10% sulfuric acid until the color of the permanganate remains unchanged. The solvent is then thoroughly...
Fenton's reagent (hydrogen peroxide catalyzed with iron) and potassium permanganate are the oxidants that have been used the longest and remain used widely...
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