Purifying and Concentrating OTC Nitric Acid

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Uploaded by on Jan 14, 2012

Warning this video uses strong acids that can burn and blind you. Do not repeat!!!

In this video we purify and Concentrate OTC Nitric acid bought at Home Depot. The product we are removing the Nitric acid from is called "Sikagard Heavy Duty Clean & Etch" made by Sika.

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Uploader Comments (myst32YT)

  • Why not break they azeotrope in the first distillation by adding sulphuric acid then. Also have you thought of packing the tube and doing fractional distillation?

  • @michalchik You would need to use a large amount of acid making it impractical. 

  • Normally I dislike the all too common HNO3 Cu reaction but your filming and the way you did it is wonderful!

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  • Holy-Terrorist:>*=* Interesting!

    I speak french and little english.

  • I found this cleaner at Home Depot about a year ago. I as well wondered about the concentration of HNO3. I did find their MSDS. It states 15-35% by weight for both Nitric Acid and Phosphoric acid (that is to say each would contribute that much, not a combined 15-35%). I struggled to find some way to extract the HNO3. I thought if I tried to distill it, it would break down the HNO3. Thanks for showing us you can distill this acid out of this mix successfully. 

  • @UC235 It is still listed on the site but according to my local store they don't carry it any more

  • Hey thanks for the mention! I'm glad my video was an inspiration for you :) Great video - I like all the different processes you went through to end up with a good product. I don't have either phosphoric or nitric acid, so this would be pretty useful for me. I think I've seen a similar product at my hardware store, might need to look into it!

  • Bye bye penny!

  • keep up the good work man!

  • Nice, I didn't know there were any products that contained nitric acid in hardware stores.

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