Barium permanganate

About: Barium permanganate is a research topic. Over the lifetime, 20 publications have been published within this topic receiving 124 citations.

Convenient routes for the preparation of barium permanganate and other permanganate salts

Abstract: Two convenient methods were developed to transformKMnO 4 into barium permanganate and other permanganate saltsvia BaMnO 4 or Mn 2 O 7 intermediates Pure BaMnO 4 was preparedby the reaction of KMnO 4 with KI in the presence of BaCl 2 andNaOH Hydrothermal reaction of barium manganate with excesscarbon dioxide for 15 h at 100 °C led to barium-permanganatewith almost quantitative yield Mn 2 O 7 waspreparedbymeansofthe reaction of KMnO 4 and sulfuric acid monohydrate in a two-phase (CCl 4 -H 2 SO 4 H 2 O) system In the presence of excess barium Introduction Barium permanganate has been in use for a long time as auseful starting material (s 75 g/L in water at 18 °C, T dec 170 °C) for the preparation of other permanganate salts [1]It has also been applied as a selective solid phase oxidantin organic chemistry [2] In spite of the widespread appli-cation, however, its convenient synthesis has not beenachieved yet Potassium permanganate is the only commer-cially available permanganate compounds, but its trans-formation into pure barium permanganate cannot be per-formed directly [3] Two synthetic precursor, however, na-mely BaMnO

Raman spectra of the permanganate ion in the solid state with excitation in the near infrared

Abstract: By means of a conventional Raman spectrometer that had been carefully designed for near-infrared Raman excitation, it was possible to record highly resolved Raman spectra of solid polycrystalline potassium and barium permanganate. The spectra of these deeply coloured materials are of high quality and comparable to those reported hitherto, obtained using Fourier transform Raman techniques and near-infrared excitation. Full site symmetry splitting and partial factor group splitting of the bands of the permanganate ion could be observed.

The reaction of barium manganate with acids and their precursors

Abstract: A simpl e and easy preparative route to obtain permangani c ac id and permanganate salt s from barium manganate and sulphuric acid is described. Sulphuric acid reacts with bari um manganate to pro­ duce sparingly solubl e bariulll sulphate and well-soluble permanga­ nic ac id or bari ulll permanganate, these in turn can be usee! to pre­ pa re ot her metal pe rmanganates. Permanganates are wide ly used in organic sy ntheses as selective oxidizing agentsl . Barium permanganate is su it ­ able for selective oxidation it sclf2-6 and can be used as starting materi a l for th e synthesis of several other metal .. " -~ ;

An improved method for the preparation of high-purity permanganate salts

Abstract: A simple and easy preparative route to obtain highly pure permanganate salts via aluminium and barium permanganate is described. Aluminium permanganate is prepared by a known method from KMnO4 and excess Al2(SO4)3, then converted to barium permanganate by reaction with excess barium hydroxide. The residual KMnO4 content is co-precipitated together with BaSO4 or adsorbed on solid Al(OH)3 (which are formed in large amounts during synthesis). The excess Ba(OH)2 is transformed into an insoluble precipitate during heating of the Ba(MnO4)2 solution. Ammonium, zinc, cadmium, magnesium and nickel permanganates were prepared in high purity from pure barium permanganate and sulfate salts.

Alkaline primary cells with electrolyte comprising manganese compound

Abstract: A battery is described. The battery includes an anode, a cathode, a separator disposed between the cathode and the anode, and an electrolyte. The electrolyte further includes manganese. The manganese is selected from the group consisting of: cesium permanganate (CsMnO 4 ), cesium manganate (Cs 2 MnO 4 ), magnesium permanganate (Mg(MnO 4 ) 2 ), magnesium manganate (MgMnO 4 ), silver manganate (Ag 2 MnO 4 ), silver permanganate (AgMnO 4 ), barium manganate (BaMnO 4 ), and barium permanganate (Ba(MnO 4 ) 2 ).