Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Yverify (what is YN ?)
Infobox references
Chemical compound
Sodium manganate is the inorganic compound with the formula Na2MnO4. This deep green solid is a rarely encountered analogue of the related salt K2MnO4. Sodium manganate is rare because it cannot be readily prepared from the oxidation of manganese dioxide and sodium hydroxide. Instead this oxidation reaction tends to stop at producing sodium hypomanganate, Na3MnO4, and even this Mn(V) salt is unstable in solution.[1] Sodium manganate can be produced by reduction of sodium permanganate under basic conditions:
4 NaOH + 4NaMnO4 → 4 Na2MnO4 + 2 H2O + O2
Because NaMnO4 is difficult to prepare, sodium permanganate is more expensive than potassium permanganate.
^Arno H. Reidies (2002). "Manganese Compounds". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a16_123. ISBN 3-527-30673-0.
Sodiummanganate is the inorganic compound with the formula Na2MnO4. This deep green solid is a rarely encountered analogue of the related salt K2MnO4...
as manganate(VI) because it contains manganese in the +6 oxidation state. Manganates are the only known manganese(VI) compounds. Other manganates include...
product is not sodiummanganate but an Mn(V) compound, which is one reason why the potassium permanganate is more commonly used than sodium permanganate...
required intermediate manganate salt, Na2MnO4, does not form. Thus less direct routes are used including conversion from KMnO4. Sodium permanganate behaves...
permanganate (/pərˈmæŋɡəneɪt, pɜːr-/) is a chemical compound with the manganate(VII) ion, MnO− 4, the conjugate base of permanganic acid. Because the...
dioxide in alkali to give sodiummanganate. Storage conditions with moisture and high temperatures are detrimental to sodium bismuthate, as it oxidizes...
and MnO 2 in air gives green potassium manganate: 2 MnO 2 + 4 KOH + O 2 → 2 K 2MnO 4 + 2 H 2O Potassium manganate is the precursor to potassium permanganate...
illustrated by the conversion of MnO− 4 to MnO2− 4,ie permanganate to manganate. Oxygen (O2) Ozone (O3) Hydrogen peroxide (H2O2) and other inorganic peroxides...
brownmillerite. The manganate(V) anion was first reported in 1946 by Hermann Lux, who synthesized the intensely blue sodium hypomanganate by reacting sodium oxide Na...
the cyan to a greyish hue. The vast majority of simple inorganic (e.g. sodium chloride) and organic compounds (e.g. ethanol) are colorless. Transition...
concentration c(NaOH) >1 mol dm−3, only one electron is accepted to produce manganate: MnO−4 + e− → MnO2−4; E° = +0.56 V Redox titrations: Permanganometry....
production of potassium permanganate, oxidized manganese dioxide to potassium manganate which, acidified by carbon dioxide absorbed from the air, oxidized further...
degenerate reaction between permanganate and its one-electron reduced relative manganate: [MnO4]− + [Mn*O4]2− → [MnO4]2− + [Mn*O4]− In general, if electron transfer...
chloride"), but names like "potassium permanganate" (instead of "potassium manganate(VII)") and "sulfuric acid" abound. An ionic compound is named by its cation...
reductant. For example, permanganate and its one-electron reduced relative manganate exchange one electron: [MnO4]− + [Mn*O4]2− → [MnO4]2− + [Mn*O4]− Coordinated...
reduction of triphenylcyclopropenium tetrafluoroborate with sodium pentacarbonyl manganate to produce the dimer of each. The balanced equation is given...
Ammonium permanganate Names IUPAC name Ammonium manganate(VII) Other names Ammonium permanganate Identifiers CAS Number 13446-10-1 N 3D model (JSmol)...
decomposition of rubidium permanganate leads to the formation of rubidium manganate intermediates. It breaks down into manganese dioxide, rubidium oxide and...
of sodium hydroxide, water, is 14.0, while that of sodium amide, ammonia, is closer to 40, making sodium hydroxide a much weaker base than sodium amide...
example of Mn in the +6 oxidation state is the green anion manganate, [MnO4]2−. Manganate salts are intermediates in the extraction of manganese from...
Muktimoy (September 1983). "A New Series of Heptamolybdonickelate(IV) and Manganate(IV). Investigation of the Unusual Magnetic and Electronic Spectral Behavior...
the reaction of oxalic acid with acidified potassium permanganate (or manganate (VII)). Once a little Mn2+ has been produced, it can react with MnO4−...
Global Information
verify (what is 
?)
