Sulfuric acid and sulfate solutions

Aqueous sulfuric acid is widely used as a solvent for the Fricke dosimeter and much work has been done over these decades. The products from sulfuric acid after irradiation at various concentrations and the importance of the direct action was pointed out [18]. By using the pulse radiolysis techniques, the reaction of OH with HSO was observed and the formation of sulfate radical, 

SO with a peak position at 450 nm, was investigated at the Hahn Meitner Institute [19] and the Soviet Academy of Science [19], independently. The first report on the SO radical formation through direct action of radiation on 

the following reactions were determined from the growth rate of SO/-. 

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Electrowinning from Aqueous Solutions. Electrowinriing is the recovery of a metal by electrochemical reduction of one of its compounds dissolved in a suitable electrolyte. Various types of solutions can be used, but sulfuric acid and sulfate solutions are preferred because these are less corrosive than others and the reagents are fairly cheap. From an electrochemical viewpoint, the high mobiUty of the hydrogen ion leads to high conductivity and low ohmic losses, and the sulfate ion is electrochemicaHy inert under normal conditions. 

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