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Hydrofluoric acid + nitric acid + water storage

Question asked by June Daniels on Jun 19, 2020
Latest reply on Jun 26, 2020 by Steven Cooke

Hi there,

I have a question about storing a solution comprised of 1 part hydrofluoric acid (technical grade, 70 percent), 2 parts
nitric acid (40 degree Baume minimum), and 3 parts water. 

 

I've seen guidelines saying anything hydrofluoric is stored in needs to be a polyethylene or lead, but I'm not sure once it has been mixed with water and nitric acid. 

 

We have the raw ingredients, and want to create a small amount of this pickling recipe into a separate container as to not contaminate any of the sources. We can either keep it, or use it up in one use.

What material does that container need to be?

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