Nitric acid, what am i doing wrong?

[gold digger]

Hey

 

I am trying to make some nitric acid by mixing potassium nitrate(impure source), hydrochloric acid(30%) and copper.

 

I start by dissolving potassium nitrate in warm water, then adding the hydrochloric acid and copper.

 

But there is no reaction. i think it may be because of the impurity in the potassium nitrate.

 

The potassium nitrate source is mixed with Potassium perchlorate and Barium nitrate.

 

If this is the case, can somebody tell me how i can purify the potassium nitrate?

Edited February 14, 2017 by gold digger

[gold digger]

I have scraped this idea, and thinking i'm gonna try out the "ostwalt process" instead.

But can someone tell me about the drying step, is this necessary?

Calcium oxide is pretty hard to find where i live.

[Sensei]

Calcium oxide is pretty hard to find where i live.

 

You don't have ready access to Calcium Carbonate rocks.. ?

It decomposes to Calcium Oxide and Carbon Dioxide

CaCO₃ + heat -> CaO + CO₂

Edited March 7, 2017 by Sensei

[gold digger]

You don't have ready access to Calcium Carbonate rocks.. ?

It decomposes to Calcium Oxide and Carbon Dioxide

CaCO₃ + heat -> CaO + CO₂

Thanks for info

 

I'm new to chemistry, but if i heat up chalk in a steel tube, could i use that to dry the gas?

Edited March 7, 2017 by gold digger

[Sensei]

I'm new to chemistry, but if i heat up chalk in a steel tube, could i use that to dry the gas?

 

Chalk (for drawing on blackboards) doesn't have to be made of CaCO₃. It could be CaSO₄.

You can check it by using acetic acid.

CaCO₃ reacts with CH₃COOH and release CO₂ gas (a lot).

 

Yes, you can use it to dry gas.

Like it's showed f.e. on this page

http://www.bbc.co.uk/bitesize/standard/chemistry/plasticsandothermaterials/fertilisers/revision/6/

Edited March 7, 2017 by Sensei

[gold digger]

Thanks for quick response and good information.

 

Now i'm one step closer to dissolve some gold

[gold digger]

hello again

 

I was wandering if i am able to purify ammonia from liquid NH₄Cl, or if there is some way i can dry it?

 

the solution i use only contain 5 - 15 % ammonia, so i got some problems when i was trying out the process.

 

The comments for the question mention stripping ammonia from a water in a digestate of a Biogas plant. Ammonia can be removed from waste streams by steam or air stripping after adding NaOH to suppress formation of ammonium ions. (http://chemistry.stackexchange.com/questions/174/why-is-distillation-not-a-viable-way-to-seperate-ammonia-from-water)

 

Is it possible to add NaHO to the solution and boil off the water, then use the dry chemical or do another step, so i can use it?