OXALIC Acid 99.6% 4 oz (Ounces) Deck, Crystals, Metal Cleaning- Rust Removal, Wood Stain Remover and More!

Works great for treating our bees.

This work great for some geode stones for cleaning the outside, soaking them overnight -any kind of natural rock or stone that you collect and want to get as clean as possible. Also awesome with removing rust from old tools.

The media could not be loaded. Worked just fine in the past when I purchased in 2022, but new formula is too crystallized, not powdery enough for compaction in InstantVap

We use this powder to kill Varroa mites on our honey bees. We have not had any infestations yet and being consistent with this helps keep our bees healthy and safe. this package is not too much powder nor too little, it will last us a long time.Be careful when using this for that application, the smell penetrates masks and cheap ventilators, a high-quality ventilator is needed to prevent the acid from going into your lungs.highly recommend

for wood bleaching

It was easy to use, did what I needed to do. Clean my crystals from my dog in Arkansas.

I used this in the process of refinishing the top on a Broyhill Brasilia credenza. This was a collectible and desirable piece of furniture, and I wanted it to look correct when it was finished. It came to me after ~60 years of regular use, so it needed some attention. The top had a lot of flaws in the finish and several dark rings and stains from water/condensation. I stripped the top with a green stripping product, then removed the remaining finish residue with a furniture refinisher product and cleaned the surface with mineral spirits. I then used this acid (very mild solution with water) and applied it to the bare veneer with a spray bottle, applying a light misting on the surface and then gently working it in with a sponge. After letting it dry, all dark rings and stains were gone and the wood looked like new! I treated the surface with a solution of baking soda and water, wiping away any remaining acid. I then lightly sanded the surface and proceeded with the new finish. It came out looking like new. This stuff works!

This time it didn't remove blood from fabric