Processing fingers in poor man's nitric acid

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Geo
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Processing fingers in poor man's nitric acid

Postby Geo » June 12th, 2018, 2:53 am

This is my video on making and using poor man's nitric acid. I can't get the video to embed so you will have to follow the link.

https://youtu.be/-Lojvw46Kgk
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junkandtreasure
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Re: Processing fingers in poor man's nitric acid

Postby junkandtreasure » June 14th, 2018, 7:48 am

Thanks Geo, a very informative video.
I noticed a couple of comments regarding a white powder residue.
I have a bag of the Hi-Yield Nitrate of Soda and there is a note
on the label that it contains 580 lbs of Calcium Carbonate CaCO3
per ton (%29).
I'm not a chemistry whiz, but I think some insoluble compound is
being produced from it reacting with either the H2SO4 or the HNO3
produced.
Perhaps some member could provide more information on the
chemistry involved.

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g_axelsson
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Re: Processing fingers in poor man's nitric acid

Postby g_axelsson » June 14th, 2018, 2:39 pm

Calcium sulfate would precipitate as a white powder... it's gypsum.

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Geo
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Re: Processing fingers in poor man's nitric acid

Postby Geo » June 14th, 2018, 10:02 pm

Thanks junkandtreasure. I will have find out if that is the same brand wide or regionally. I may have to buy a better grade.
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Re: Processing fingers in poor man's nitric acid

Postby kurtak » June 16th, 2018, 11:27 am

Geo wrote:Thanks junkandtreasure. I will have find out if that is the same brand wide or regionally. I may have to buy a better grade.


Geo

Have you considered using "Spectracide" brand stump remover as your nitrate source - it is potassium nitrate which I believe does not have any other additives such as the Calcium Carbonate in the Hi-Yield (its straight up potassium nitrate)

I have never had to make poor mans nitric because I have always had access to cheap nitric - I however do use the Spectracide (potassium nitrate) as a flux ingredient in "some" of my smelting flux's when I think I need an added oxidizer in the flux (its hard on crucibles so only use it if/when I think I need the added oxidizer)

The Hi-Yield (I believe) has the Calcium Carbonate (a base) in it to act as an inhibiter so that the nitrate is time released as a fertilizer - other wise the nitrate would release/dissolve to quickly & burn the plants you are fertilizing with it

Spectracide stump remover can be found in the garden department of Home Depot or Lowes &/or most other farm & garden shops

As an added note; - you have to peel the label on the back of the Spectracide bottle to see that it's potassium nitrate

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denim
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Re: Processing fingers in poor man's nitric acid

Postby denim » June 16th, 2018, 2:20 pm

Hey Geo,

I know that 'watching the bottom line' is paramount in our small scale refining world, but why not just buy some sodium nitrate from Duda Diesel which is 99% pure, and cheap- $12.50 for 5 lbs plus some shipping. I buy mine this way and 5 lbs lasts me a couple of years. I don't do fingers in poor man's nitric anymore because I have moved on to AP, as many have.

Sodium nitrate.JPG


Dennis
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jimdoc
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Re: Processing fingers in poor man's nitric acid

Postby jimdoc » June 16th, 2018, 4:36 pm

This is what I see under last topic with this thread;

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FrugalRefiner
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Re: Processing fingers in poor man's nitric acid

Postby FrugalRefiner » June 16th, 2018, 4:41 pm

:lol: Yeah, I see the same thing from the main index page too. :lol:

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Re: Processing fingers in poor man's nitric acid

Postby denim » June 16th, 2018, 6:54 pm

Too funny! That did not show up on my phone.

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Geo
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Re: Processing fingers in poor man's nitric acid

Postby Geo » June 16th, 2018, 8:58 pm

Yea, I saw that too. Totally unintended. :-D Dudadiesel is actually about three miles from my house.
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Geo
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Re: Processing fingers in poor man's nitric acid

Postby Geo » June 16th, 2018, 9:00 pm

Thanks Kurt. I do know about the stump remover but it just didn't cross my mind.
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