I want to clean over 10 dozen 120 conibear ( style) and use them, for trapping pine marten .
So to eliminate the fine loose rust without to much physical effort,, no wire wheels or brushing And I don't pan to power wash them either
Im willing to boil or soak them

I do plan to dip them in a concrete sealer,, I do not want rust on the fur , I want the trap to be a bit easier to set, and maybe more energy to close

Yeah I saved a lot of money on 330 's: long ago a fellow got wax on the triggers ,

The sealer isnt a lubricant however I may still clean up the trigger and jaw

So what's the difference be3tween Oxalic acid and vinegar dipping? Or anything else?, And I would like to keep the cost down and not work with anything too toxic

vinegar contained acetic acid.

I recommend phosphoric acid. I use Ospho, get it at Ace Hardware. It doesn't so much clean the rust. It stabilizes it by converting it to iron phosphate. You really need to follow up with a coating of some kind. I treat my cages with Ospho before painting. Good stuff.