Diffusion controlled porous WO3 thin film photoanodes for efficient solar-driven photoelectrochemical permanganic acid production

Photoelectrochemical (PEC) oxidation of the divalent manganese ion to the permanganate ion was achieved by using porous WO3 thin film photoanodes in sulfuric acid electrolytes under simulated sunlight.

A Rapid Method for the Determination of Manganese Ethylenebisdithiocarbamate and its Residues on Grains

A method has been developed, based on the periodate oxidation of the manganese in the coordination product of zinc ion and manganese ethylene bisdithiocarbamate to permanganic acid, to determine DithaneM-45. The relationship between the intensity of color and the concentration of manganese obeys Beer’s law up to 100 μg at 540 nm. The method can be easily applied to the determination of the active ingredient in formulations and also for residue analysis. The method is sensitive to 0.6 μg and can be used to determine 6 /xg fungicide at the 20 g sample level.