Making Nitric Acid?

[Ellias]

Cant i technically make Nitric by just mixing Calcium Nitrate and Sulfuric Acid (no distilling nor hot plate?)

Since calcium sulfate is insoluble in nitric acid i can just filter and pronto? Also can anyone help me with the ratio of 93% sulfuric and calcium nitrate if im correct about this?

 

[adam mizer]

I found this explanation from LazerSteve:

"When adding the sulfuric acid to Calcium Nitrate the Calcium Sulfate formed is very absorbent and tends to suck up all the liquids. This coupled with the heat of the reaction, causes the resulting nitric acid to go up in vapors as it is formed, or to be absorbed by the Calcium Sulfate. The result is that your nitric literally gets trapped in the mix or goes up in smoke."

Check this: https://goldrefiningforum.com/threads/making-sodium-nitrate.1330/page-2

There was more information also in searching.