How do oxidation cleaners (for electrical contacts) work, chemically? Is vinegar just as good?

Update: Just did a bit o' research. Apparently one of the commercial cleaners has H3O2 (H2O + OH) in it and its MSDS shows the byproducts as CO and CO2. How can a free hydroxyl radical chew through cupric or aluminum oxide? Is the carbon coming from the CO2 in the air, or some inert hydrocarbon in the cleaner? An... show more Just did a bit o' research. Apparently one of the commercial cleaners has H3O2 (H2O + OH) in it and its MSDS shows the byproducts as CO and CO2. How can a free hydroxyl radical chew through cupric or aluminum oxide? Is the carbon coming from the CO2 in the air, or some inert hydrocarbon in the cleaner? An enquiring mind wants to know....
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