Potassium permanganate, for oxidation

Potassium ferricyanide in oxidative decarboxylation, 40, 86 Potassium permanganate for oxidation of (trialkylmethyl)amines to tri-alkylnitromethanes, 43,87 Pregnenolone acetate, conversion to 3/3-acetoxyetienic acid, 42, 5 Propane, 2,2-dibotoxy-, 42,1 Propargylsuccinic anhydride, by-product in addition of maleic anhydride to allcne, 43, 27... 

Various methods can be used to analy2e succinic acid and succinic anhydride, depending on the characteristics of the material. Methods generally used to control specifications of pure products include acidimetric titration for total acidity or purity comparison with Pt—Co standard calibrated solutions for color oxidation with potassium permanganate for unsaturated compounds subtracting from the total acidity the anhydride content measured by titration with morpholine for content of free acid in the anhydride atomic absorption or plasma spectroscopy for metals titration with AgNO or BaCl2 for chlorides and sulfates, respectively and comparison of the color of the sulfide solution of the metals with that of a solution with a known Pb content for heavy metals. 

Carus Chemical Company offers CAIROX potassium permanganate for the in situ remediation of volatile organic compounds (VOCs) in groundwater and soil. The method of oxidant delivery during treatment is tailored to site conditions. For unsaturated, low-permeability soils, CAIROX is introduced using deep soil mixing. In areas where the site has high permeability or the treatment media is saturated with water, well injection or recirculation can be used. 

An in situ chemical oxidation field demonstration using potassium permanganate for the remediation of chlorinated solvents was conducted in 1996 at the U.S. Department of Energy s (DOE s) Kansas City Plant in Kansas City, Missouri. The total cost of the demonstration was approximately 1,000,000. This included all pre- and posttesting, permitting, equipment, and labor. The estimated cost of this technology is around 128/yd (D18766A, p.l5). 

The corresponding syzz-isomer was, on the other hand, prepared from the potassium permanganate-mediated oxidation of trifluorocrotonate 10, derived from -hydroxy-butyrate. In this procedure, the diol ester with syn relative configuration was the only product detected. After acetylation, syn-11 was employed as a substrate for the enzymatic resolution affording both (2S,3S)-11... 

Phenyl -tolyl selenide in aqueous suspension is boiled with potassium permanganate for several hours. The manganese mud is dissolved and the 4-carboxydiphenyl selenoxide precipitated by passing in sulphur dioxide. After filtration the precipitate is macerated with dilute sodium carbonate solution, the products of oxidation being separated in this manner into phenyl p-tolyl selenoxide and 4-carboxydiphenyl selenoxide. Addition of dilute sulphuric acid to the sodium carbonate extract causes the separation of 4-carboxydiphenyl selenoxide, which is crystallised from alcohol. The product is a microcrystalline powder, melting with decomposition at 253° to 255° C. Attempts to resolve it into optically active forms have failed the l-menthylamine salt melts at 220° to 222° C. with decomposition, and the d-a-phenyl-ethylamine salt forms feathery needles, M.pt. 194° to 195° C. with decomposition.3... 

The usual oxidising media, such as permanganates, bichromates, etc.,4 react instantaneously with ferrous salts, yielding in acid solution the normal ferric salts. Many methods for the quantitative determination of iron are based on these reactions. Thus, for example, with potassium permanganate the oxidation of ferrous sulphate proceeds as follows —... 

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