I keep tools in my jar of pennies to keep my pennies from rusting. :)
"I suspect that the tool corrosion could be due to the dissimilar
I think you may have taken some mild ACID :) What salt are you talking about? How can you have a current flowing? Am I missing something?
"IIRC"
Is that a newly discovered element? Never heard of IIRC on the periodic table.
I just spray my tools with a very light coat of oil and Voila, no rust.