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Dropping gold from AP and AR

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viktor1984
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Dropping gold from AP and AR

Postby viktor1984 » May 27th, 2010, 10:18 pm

(1) Ok here is my problem. i dissolved gold random stuff from ram and cpus. after i removed most base metals. i dissolved it Via poor mans AR method and after all gold was dissolved i used up all my urea to nutralize the acid and it looked like it wasnt fizzing anymore. so then i dissolved some SMB with water and added it to the solution and it fizzed and i did get alot of brown powder on the bottom of the bucket.
but when i test the solution if there is anymore gold that is in the solution and the test comes out positive for gold. and when i add more SMB it still showes gold after testing and its been like this for 2 days now. How do i get the gold drop out of solution all the way??? i heated the solution overnight still positive any sugges.?


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Re: Dropping gold from AP and AR

Postby lazersteve » May 28th, 2010, 12:13 am

What color is the swab test?

A common false positive with stannous chloride on the swab after the gold is precipitated from solutions.

Check my website documents section for Sulfurous Acid document for chemical explanation. In essence you made sulfurous acid with the excess SO2, adding stannous chloride (tin in acid solution) you made hyposulfurous acid. Zinc is used in the referenced document, but any soluble metal above hydrogen in the activity series chart will produce the same effect.

During this reaction the tin forms sodium and hydrogen sulfides (rotten egg smell -- very deadly!!!) which is a strong reducing agent which pushes all metals out of solution as dark colored (brown, gray, or light black) powders (metal sulfide stain).

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viktor1984
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Re: Dropping gold from AP and AR

Postby viktor1984 » May 28th, 2010, 12:17 am

The test color is black

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lazersteve
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Re: Dropping gold from AP and AR

Postby lazersteve » May 28th, 2010, 10:07 am

viktor1984 wrote:The test color is black


Do you have a photo?

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viktor1984
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Re: Dropping gold from AP and AR

Postby viktor1984 » May 28th, 2010, 2:36 pm

the first 2 pictures are before and after tests.
the other pictures are of the solution.
Image
Image
Image
Image
Image
Image
Image


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Re: Dropping gold from AP and AR

Postby lazersteve » May 28th, 2010, 3:27 pm

The swab looks brown to me. Test for Pd using DMG, if negative then false it's a positive. Gold will be purple. When the stannous is dropped onto the swab do you smell a rotten egg (hydrogen sulfide) odor? Don't inhale directly onto the swab, but try to waft a slight wiff of the swab to your nose. Do this in outdoor where there is plenty of fresh are flowing as hydrogen sulfide is deadly in fairly low concentrations.

What is the sediment in the bottom of the solution?

Steve
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Re: Dropping gold from AP and AR

Postby viktor1984 » May 28th, 2010, 3:42 pm

sediment in the bottom of the solution is what dropped when i used SMB.
i do not have any DMG
and when i put a drop on the swab it does smell like nasty rotten eggs.
what do i do now?

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Re: Dropping gold from AP and AR

Postby lazersteve » May 28th, 2010, 6:13 pm

Don't add any more SMB.

Pour off the solution without the sediment as it may contain gold.

Rinse the sediment several times with water and post a photo of your results.

Steve
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Barren Realms 007
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Re: Dropping gold from AP and AR

Postby Barren Realms 007 » May 28th, 2010, 9:00 pm

lazersteve wrote:Don't add any more SMB.

Pour off the solution without the sediment as it may contain gold.

Rinse the sediment several times with water and post a photo of your results.

Steve


Steve I'm not so sure he has gotten all of the nitric out of the solution. Might need to boil this down some.
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viktor1984
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Re: Dropping gold from AP and AR

Postby viktor1984 » May 28th, 2010, 9:14 pm

i heated it in a crockpot for a whole night on high.
im rinsing the sediment with water now and it looks like a very fine heavy powder on buttom.

i also rinse it with hcl after rinsing it with water right?
and if its gold it will remain on bottom correct?

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Re: Dropping gold from AP and AR

Postby Barren Realms 007 » May 28th, 2010, 9:28 pm

viktor1984 wrote:i heated it in a crockpot for a whole night on high.
im rinsing the sediment with water now and it looks like a very fine heavy powder on buttom.

i also rinse it with hcl after rinsing it with water right?
and if its gold it will remain on bottom correct?


You heated the solution or just the cleaned powder in a clean solution? How much volume of liquid did you evaporate off?
Give a man a fish and you feed him for a day, teach a man to fish and you feed him for life.
You have to crawl before you can walk.
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viktor1984
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Re: Dropping gold from AP and AR

Postby viktor1984 » May 28th, 2010, 10:42 pm

i heated the whole solution not the clean wated with powder.
it evaporated about half of it out. well 2 out of 5 quarts

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Re: Dropping gold from AP and AR

Postby goldsilverpro » May 28th, 2010, 10:51 pm

Heating doesn't buy anything when eliminating nitric. Evaporation is what's important. If nitric is the problem, it looks like you have 3 more quarts to evaporate.
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Barren Realms 007
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Re: Dropping gold from AP and AR

Postby Barren Realms 007 » May 28th, 2010, 10:52 pm

If it were me I would do a small sample with SMB and see what it does, but that is me. Follow what Steve tells you to the letter.
Give a man a fish and you feed him for a day, teach a man to fish and you feed him for life.
You have to crawl before you can walk.
Patience is a virtue.
A man has got to know his limitations.

Chance favors the prepared

Barren Realms 007
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Re: Dropping gold from AP and AR

Postby Barren Realms 007 » May 28th, 2010, 10:54 pm

goldsilverpro wrote:Heating doesn't buy anything when eliminating nitric. Evaporation is what's important. If nitric is the problem, it looks like you have 3 more quarts to evaporate.



Is it ok to do it with the heat adjusted to just above nitrics evap point or should it be done at a boiling temp?
Give a man a fish and you feed him for a day, teach a man to fish and you feed him for life.
You have to crawl before you can walk.
Patience is a virtue.
A man has got to know his limitations.

Chance favors the prepared

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Re: Dropping gold from AP and AR

Postby lazersteve » May 28th, 2010, 10:57 pm

Barren Realms 007 wrote:Steve I'm not so sure he has gotten all of the nitric out of the solution. Might need to boil this down some.


Barren,

If he had excess nitric in solution he would have reported that the solution foams and emits brown gas when the extra SMB was added. Also the fact the he has a solid in the bottom that is not fizzing or redissolving is a good indication he has eliminated any free nitric also.

Vic,

Here's a link on how to proceed with the powder:

Washing Gold Powder

Steve
The proof is in the pudding.
Purchase refining supplies and DVDs --> Lazersteve's Store
Click Here for the -->Guided Tour Link
Find anything on the Forum FAST!!!---> Click Here
Click Here for -->Stannous Chloride Recipe and Testing Results
What is in Lazersteves DVD's ?

Barren Realms 007
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Re: Dropping gold from AP and AR

Postby Barren Realms 007 » May 28th, 2010, 11:01 pm

lazersteve wrote:
Barren Realms 007 wrote:Steve I'm not so sure he has gotten all of the nitric out of the solution. Might need to boil this down some.


Barren,

If he had excess nitric in solution he would have reported that the solution foams and emits brown gas when the extras SMB was added. Also the fact the he has a solid in the bottom that is not fizzing or redissolving is a good indication he has eliminated any free nitric also.

Vic,

Here's a link on how to proceed with the powder:

Washing Gold Powder

Steve



Thanks Steve, I had a brain fart there for a second. Where's that dunce hat at. :roll:
Give a man a fish and you feed him for a day, teach a man to fish and you feed him for life.
You have to crawl before you can walk.
Patience is a virtue.
A man has got to know his limitations.

Chance favors the prepared


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