Potassium hypomanganate is the inorganic compound with the formula K3MnO4. Also known as potassium manganate(V), this bright blue solid is a rare example of a salt with the hypomanganate or manganate(V) anion, where the manganese atom is in the +5 oxidation state.
The compound is unstable due to the tendency of the hypomanganate anion to disproportionate in all but the most alkaline solutions.[2][3]
References
^ abLee, Donald G.; Chen, Tao (1993), "Reduction of manganate(VI) by mandelic acid and its significance for development of a general mechanism of oxidation of organic compounds by high-valent transition metal oxides", J. Am. Chem. Soc., 115 (24): 11231–36, doi:10.1021/ja00077a023.
^Lee, Donald G.; Chen, Tao (1989), "Oxidation of hydrocarbons. 18. Mechanism of the reaction between permanganate and carbon-carbon double bonds", J. Am. Chem. Soc., 111 (19): 7534–38, doi:10.1021/ja00201a039.
January 31, 2023
potassium, hypomanganate, inorganic, compound, with, formula, k3mno4, also, known, potassium, manganate, this, bright, blue, solid, rare, example, salt, with, hypomanganate, manganate, anion, where, manganese, atom, oxidation, state, namesiupac, names, potassi. Potassium hypomanganate is the inorganic compound with the formula K3MnO4 Also known as potassium manganate V this bright blue solid is a rare example of a salt with the hypomanganate or manganate V anion where the manganese atom is in the 5 oxidation state Potassium hypomanganate NamesIUPAC names potassium manganate V potassium tetraoxidomanganate 3 Identifiers3D model JSmol Interactive imageChemSpider 64887110PubChem CID 118856760CompTox Dashboard EPA DTXSID20893219InChI InChI 1S 3K Mn 4O q3 1 3 Key BABZALCEXXHDEO UHFFFAOYSA NSMILES O Mn 3 O O O K K K Properties 1 Chemical formula K 3Mn O 4Molar mass 236 229 g mol 1Appearance bright blue solidUV vis lmax 670 nm e 900 dm3 mol 1 cm 1 Related compoundsOther anions Potassium manganatePotassium permanganateExcept where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa Y verify what is Y N Infobox referencesPreparative routes Editby two electron reduction of potassium permanganate with excess potassium sulfite 2 3 MnO 4 SO2 3 H2O MnO3 4 SO2 4 2 H by the single electron reduction of potassium manganate with hydrogen peroxide in 10 M potassium hydroxide solution 4 2 MnO2 4 H2O2 2 OH 2 MnO3 4 O2 2 H2Oby the single electron reduction of potassium manganate with mandelate in 3 10 M potassium hydroxide solution 1 2 MnO2 4 C8H7O 3 2 OH 2 MnO3 4 C8H5O 3 2 H2Oby disproportionation when manganese dioxide is dissolved in a concentrated solution of potassium hydroxide 2 2 MnO2 3 OH MnO3 4 MnOOH H2OThe compound is unstable due to the tendency of the hypomanganate anion to disproportionate in all but the most alkaline solutions 2 3 References Edit a b Lee Donald G Chen Tao 1993 Reduction of manganate VI by mandelic acid and its significance for development of a general mechanism of oxidation of organic compounds by high valent transition metal oxides J Am Chem Soc 115 24 11231 36 doi 10 1021 ja00077a023 a b c Cotton F Albert Wilkinson Geoffrey 1980 Advanced Inorganic Chemistry 4th ed New York Wiley p 746 ISBN 0 471 02775 8 a b Greenwood Norman N Earnshaw Alan 1984 Chemistry of the Elements Oxford Pergamon Press pp 1221 22 ISBN 978 0 08 022057 4 Lee Donald G Chen Tao 1989 Oxidation of hydrocarbons 18 Mechanism of the reaction between permanganate and carbon carbon double bonds J Am Chem Soc 111 19 7534 38 doi 10 1021 ja00201a039 Retrieved from https en wikipedia org w index php title Potassium hypomanganate amp oldid 1094123249, wikipedia, wiki, book, books, library,
