Permanganate, barium

Hardy [906] has proposed that the steps for the decomposition of Ba(Mn04)2 are 

Rienaecker and Werner [907] suggest that Ba3(Mn04)2 is the initial decomposition product, by analogy with results for KMn04. Isothermal a—time curves for vacuum decomposition at 413—463 K were sigmoid 

The effects of pre-irradiation [908], although still marked, were less for a given dose than those observed for the alkali metal permanganates. The other Group IIA permanganates are obtained as hydrates. 

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Barium manganate (barium permanganate) [7787-35-1 ] M 256.3, d 3.77. Wash with... 

In a related reaction, primary aromatic amines have been oxidized to azo compounds by a variety of oxidizing agents, among them Mn02, lead tetraacetate, O2 and a base, barium permanganate, and sodium perborate in acetic acid, tert Butyl hydroperoxide has been used to oxidize certain primary amines to azoxy compounds. 

Ammonium dichromate Ammonium nitrate Ammonium perchlorate Ammonium permanganate Ammonium persulfate Amyl nitrate Barium bromate Barium chlorate Barium hypochlorite Barium perchlorate Barium permanganate Barium peroxide Bromine pentafluoride Bromine trifluoride l-Bromo-3-chloro-5,5-dimethylhydantoin (BCDMH)... 

The crude residue is a mixture of barium permanganate with barium chloride and it must be analyzed as follows ... 

The preparation of starch blue in aqueous solution with iodine-iodide mixtures is the most common procedures. According to the method of Pals56 starch (10 mg) of water (5 mL) is boiled for 5 min and blended with 7.6 X 10 5 mol/L (5 mL) of an aqueous solution of iodine and 4.27 x 10 5 mol/L (5 mL) of an aqueous solution of KI. The complex is precipitated by the addition of an aqueous solution of KF (10 mol/L). The precipitate is centrifuged (5000 rpm for 10 min) and washed with aqueous KF (1 mol/L). The Vanino reagent (barium permanganate) also precipitates iodized starch.57 The resulting complex is stable and has a defined stoichiometry. A similar procedure was described by Meyer and Bemfeld.58 Chinoy... 

Barium permanganate (BaMn04) is also used for the oxidation of 1°- and 2°-alcohols to aldehydes and ketones, and no overoxidation is observed. 

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