Oxalic acid and calcium nitrate for nitric acid

Subject: Oxalic acid and calcium nitrate for nitric acid

Date: Fri Oct 15 05:51:18 1999
Posted by No name entered.
Grade level: grad (science) School: No school entered.
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Area of science: Chemistry
ID: 939981078.Ch

Message:


   I have a reference that says some L.Thompson obtained sulfuric acid of 
the highest degree of purity by treating calcium sulphate with oxalic acid, 
and evaporating the filtrate.
   CaSO4 is insoluble in water (nearly). So how exactly could one do this?

   And if one used Oxalic acid with Calcium nitrate, could one get nitric 
acid in solution? I know that HNO3 won't oxidise oxalic, so calcium oxalate 
would possibly precipitate, and then what remains in solution ?

   Finally, reacting AgNO3 with HCl one gets HNO3 (soln). But HNO3 is 
stronger than HCl, how can this be ?

Re: Oxalic acid and calcium nitrate for nitric acid

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