Homemade Evapo-rust

Its not a science. I fill a small dish with vinegar and disolve a tablespoon or so. It will react and you'll see it working. Too much salt and it works faster but it will etch meaning dont walk away.
 
I was told by someone who seemed to know a lot about chemistry who I asked why the salt, that Vinegar,(Acetic Acid), and table salt,(Sodium Chloride), produce Hydrochloric Acid which is why it is quite aggressive. I use molasses but if you can get some EDTA Tetrasodium salt dissolves rust fast, it is a chelating agent like Evapo-Rust, museums use it among other things. Unfortunately where I live you need a license to buy it and it is expensive but it works really well.
 
OK so how does your concoction compare to Evapo-Rust or Crud Killer on the Same Drill Chuck type of Rust Damage
 
I have also been wondering about these solutions in an ultrasonic bath or would that agitation be far to much action
 
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