Frank Grunthaner wrote: > Sorry guys, the water can and will close the circuit. As I said before, the > question is only how much and how effective the surfactant package is at > reducing the > level. Aluminum will corrode, as will the copper. Complex reactions, local > chemical variations, oxide formation-insuced changes in potential. Main > impact will be slag formation. > > Answer is corrosion inhibitors in fresh antifreeze. > > Frank Grunthaner Yes, corrosion happens. Certainly different spots on the same piece of metal can serve as anodes and cathodes so that redox occurs. I am trying to address the question of whether we *increase* the rate of corrosion of aluminum engine parts by using copper in other parts of the cooling system ( long pipes, double T, radiator, etc.) In these cases it seems to me that it may be relevant to ask whether there is an electrical path thru the chassis. In the classic electrochemical cell ( two different metals in an electrolytic solution), there is assumed to be an external electrical connection from one electrode to the other. Larry A. |
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