The corrosion rates of lead dioxide on titanium composite anodes at 50, 200 and 400 mA.cm−2 were measured by the weight-loss method during electrolysis in 0·5 Mand 3 M NaCl at ambient temperatures. Test periOds were of up to 25 days (in one case 40 days) duration.
Corrosion rates are related to current density and inversely relqted to concentration of NaCl (at given current density): Reproducibility is good With in each run. However differences from sample to sample suggest difficulties in manufacturmg fault-free specimens. There are indications that the corrosion rate can decrease after an initial period of exposure.
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References
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DawsonJ. L., in ‘Electrochemistry of Lead’, Ed.A. T. T., 1979, p. 309 (London & New York: Academic Press)
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HamzahH., KuhnA. T., & RandleT. H., ibid., p. 283
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LarteyR. B., & KuhnA. T., Corrosion, 1977, 33, 73
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LarteyR. B., PhD Thesis, University of Salford, 1977
