View Full Version : Phosphoric acid
Bloodman14
10-26-2021, 09:25 PM
Any chemists in the house? I have a large storage container full of phosphoric acid that I am using to de-rust and de-chrome some car parts for a resto-mod project. So far, everything is going well. At what point will the acid lose its' potency, and how would I tell?
Thanks.
deltaenterprizes
10-26-2021, 09:40 PM
Litmus paper.
Bloodman14
10-26-2021, 09:46 PM
I am guessing that it will show as being neutral? 7. something?
Yeah, pH. I'm guessing you'll figure it out when it stops working in your application. It'll also stop tasting like Pepsi or Coca Cola. (no don't do that!)
jorg0370
10-26-2021, 11:19 PM
Mix a little sample with a little baking soda. If it does not bubble and off-gas, it has lost it's effectiveness.
Bloodman14
10-26-2021, 11:22 PM
Gentlemen, I thank you for the info.
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