Permanganic acid , potassium salt

Permanganic Acid, Potassium Salt, Registry of Toxic Effects of Chemical Substances, RTECS Number SD6475000, May 1993. 

Photolysis, apparatus for, 55, 17 Phthalimide, N-amino- [ 1//-Isoindole-1,3-(2//)-dione, 2-amino-, 55, 115 Potassium rew-butoxide [2-Propanol, 2-methyl-, potassium salt], 55,12, 13 Potassium iodide, 55, 71 Potassium permanganate [Permanganic acid, potassium salt], 55,68 Propane, 2,2 dimethyl 1 phenyl, 55, 112 Propane, 2 isocyano-2-methyl-, 55, 96... 

Pentynoic acid, methyl ester, 55, 76 Permanganic acid, potassium salt [Potassium... 

Synonyms permanganic acid potassium salt chameleon mineral... 

Potassium Permanganate. Permanganic acid potassium salt chameleon mineral. KMnO mol wt 158.03. K 24.74%, Mn 34.76%, O 40.50%. Prepn from manganese ore by electrolytic oxidation Faith, Keyes Clark s Industrial Chemicals, F. A. Lowenheim, M. K. Moran, Eds. (Wiley-Interscience. New York, 4th ed., 1975) pp 679-683. 

Synonyms Chameleon mineral Cl 77755 Condy s crystals Permanganate of potash Permanganic acid, potassium salt Purple salt... 

Alkanolamines can be oxidized with various oxidiziag agents. With acidic potassium permanganate or excess potassium hydroxide, the potassium salts of the corresponding amino acid are obtained... 

CIS of potassium permanganate in 2000 c.c. of water is placed in a, and an emulsion of 100 grams of the hydrocarbon in 600 c.c. of water is gradually added in small portions. The mixture is kept cool by means of a current of cold water, and shaken continuously. The oxidation products are then treated as follows The liquid is filtered from manganese oxide, and evaporated to about 1000 c.c., saturated with carbon dioxide, and the neutral and unaltered compounds removed ly extract jn with ether in the usual manner. The crude pinonic acid is separated from its potassium salt by sulphuric acid and is then extracted with ether. If /S-pinene be present, nopinic acid will be present... 

Oxidation of methyl perfluoroalkyl sulphones with refluxing aqueous potassium permanganate produced the perfluorinated alkanesulphonic acid in 85% yield as the potassium salt (equation 86). On the other hand, attempted oxidation with sodium hypochlorite caused only chlorine substitution (equation 87). Reaction of the new sulphone with aqueous hydroxide gave the same perfluoroalkane sulphonic acid salt (equation 88). 

Mercury is most accurately determined by the cold vapor atomic absorption spectroscopic method. The instrument is set at the wavelength 253.7 nm. The metal, its salts and organic derivatives in aqueous solution can be measured by this method. The solution or the solid compounds are digested with nitric acid to convert into water-soluble mercury(ll) nitrate, followed by treatment with potassium permanganate and potassium persulfate under careful heating. The excess oxidants in the solution are reduced with NaCl-hydroxylamine sulfate. The solution is treated with stannous chloride and aerated. The cold Hg vapor volatdizes into the absorption cell where absorbance is measured. 

The now classic example of this type, excluding nucleophilic substitution reactions, is the solubilization of potassium permanganate in benzene by [18]crown-6 derivatives. The resulting solution proved a mild and efficient oxidizing agent for many organic compounds. For example, a-pinene is oxidized to cw-pinonic acid in 90% yield (Scheme 8) in contrast to a 40-60% yield in aqueous solution. An additional advantage is that the products of these reactions (e.g. potassium salt of cw-pinonic acid in Scheme 8) are frequently insoluble in the hydrocarbon solvents and consequently are unable to react further. 

The treatment of polonium(lV) with nitric acid/potassium permanganate under reflux yields a sludge of manganese dioxide which contains all the polonium originally present the valency state is uncertain. Polonium (IV) in weighable amounts is not oxidized by persulfate, ceric salts or chlorine in alkaline solution (12), although trace scale work indicates that both ceric salts and dichromate do oxidize polonium to polonium(VI) (94). 

Potassium permanganate Permanganic acid (HMn04), potassium salt (8,9) (7722-64-7)... 

Potassium permanganate oxidises arsenious acid rapidly and quantitatively in the presence of a trace of potassium iodide, which acts catalytically.7 The reaction takes place in the presence of mineral acid and the use of an indicator or of sodium bicarbonate is unnecessary. The titration may be carried out at any temperature up to 95° C. A slight correction is necessary for the oxidation of the iodide other iodides are less effective than the potassium salt. This method is comparable in accuracy with the iodometric method. 

Oxidation of methyl 3,4-isopropylidene-2-desoxy-a-D-galactoside with potassium permanganate in the presence of potassium hydroxide afforded methyl 3,4-isopropylidene-2-desoxy-a-D-galacturonoside (LXXXIV) as its potassium salt. This could readily be converted into methyl 2-desoxy-a-D-galacturonoside (LXXXV) and both LXXXIV and LXXXV afforded crystalline esters and amides.230 The uronic acid derivative could be reduced by lithium aluminum hydride in ethereal solution to give methyl 3,4-isopropylidene-2-desoxy-a-D-galactoside.230 Although 2-des-... 

Sodium permanganate was used in place of the potassium salt in an experiment to degrade chlorinated materials in oils. Addition of methanol caused a violent reaction, spraying the mix about. The concentration, or acidity, of the material is not stated. However sodium permanganate is far more soluble in water, and presumably methanol, than is the potassium salt. Intimate mixing means more violent reaction. 

Picric acid Potassium, metal Potassium permanganate Silver salts, organic Sodium, metal Sulfuric acid, concentrated... 

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