Pure lead was anodized at various constant potentials in sulfuric acid solutions.At potentials below those for PbO2 formation, a layer of tetragonal PbO is formed near the lead.PbSO4 is formed as an outer layer.The rate of corrosion of Pb was found to increase with increasing temperature and decreasing acid 'concentration and is given by the equation: w = ct ~.At constant .time,weight loss is related to potential by the equation: log w = A -[-BV.At higher potentials a protective film, presumably PbO2, is formed.
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J. J. Lander (1951) studied this question.