Abstract
DURING an investigation into the influence of speed of flow on the internal corrosion of mild-steel tubes, an interesting and unusual form of corrosion product occurred. The tests were carried out with annealed 5/8-in. bore pipes through which Metropolitan Water Board water was flowing at 56° C. at a speed of 430 ft./min. The initial alkalinity of the water was 195 but fell rapidly during the first three days of the test to 75 and gave an overall mean of 76 (expressed as p.p.m. calcium carbonate). The mean pH value was 8.8.
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References
Mayne, J. E. O., J. Chem. Soc., 129 (1953).
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BUTLER, G., ISON, H. An Unusual Form of Corrosion Product. Nature 182, 1229–1230 (1958). https://doi.org/10.1038/1821229a0
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DOI: https://doi.org/10.1038/1821229a0
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