EvapoRust DIY Alternative proven by science

Having searched for a homemade alternative to super-effective, but spendy EvapoRust, this is the first video I have found explaining the chemistry, experimentation, and data for their cheap and effective rust remover.

In this YouTube video, the action begins at 2:32

https://youtu.be/fVYZmeReKKY?si=K8_uEDN_hlhxIRLa

-RECIPE-

For 1 liter of water

add 100 grams of citric acid

To this acidic solution, add one of these bases:

40 grams Sodium Carbonate

(Washing soda)

63 grams Sodium Bicarbonate

(Baking Soda)

30 grams Sodium Hydroxide

(Caustic soda, Lye, the active ingredient in Drano drain cleaner)

The pH of the final solution will be about 4.

Finally, he adds a surfactant, which is simple dishwashing liquid.

In the video he uses less than a teaspoon, I will try Dawn.

My bucket of Rusty bolts will have a soak in this liquid as soon as I can mix up the ingredients…