The effects of temperature, interface pH, and magnesium ions on the formation of calcareous deposits induced by cathodic protection (CP) on steel have been studied in seawater and in three 0.7 M NaCl + 0.0025 M NaHCO3 solutions. The interface pH at a given CP potential was calculated to be higher at low temperature, thus favoring magnesium-rich deposits. The calcareous deposits may dissolve or precipitate when temperature changes. Free magnesium ions in seawater are the primary agents inhibiting the low temperature formation of calcareous deposits. Various suggestions are made for increasing the Ca/Mg ratio and the protectiveness of deposits formed in cold water.
No takes yet. Share an insight, caveat, or question.
Lin et al. (1988) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: