How much gold do you think could be extracted from these?

[goldsilverpro]

You might want to test your solution for vlues if you have stnnous chloride, there is a possability tht with the aamount of solution you are using for your test that some of your gold might get dissolved into your solution. A test of this nature with a smaller amount of solution would work better.

Since I don't have any tin powder laying around can I put a peice of a tin can into hcl for the stannous chloride?

I may be wrong, but I don't think that so-called "tin cans" are commonly made with tin coated steel any longer. Tin is expensive. Buy some 95% tin solder to make the stannous chloride.

 

[Barren Realms 007]

You might want to test your solution for vlues if you have stnnous chloride, there is a possability tht with the aamount of solution you are using for your test that some of your gold might get dissolved into your solution. A test of this nature with a smaller amount of solution would work better.

Since I don't have any tin powder laying around can I put a peice of a tin can into hcl for the stannous chloride?

Tin can will not work. You can go to home store or hardware store and get some 95/5 plumbers solder and cut it up into some small pieces nd soak the in HCL till you get no more reaction, heat helps with this. Then filter your solution thru a coffee filter and you are ready to go.

 

[dlb92]

This is kind of exciting, I filtered the acid from the jar I thought was dissolving my gold from the first round disc and this is what I got.

I also tried one of the barrels and an intact circle.

Does anyone know what material this barrel is made out of? It seems completely resistant to the HCL.

Also how do you recommend getting the tiny particles in the filter paper? I tried a magnet cause someone said the particles were magnetically charged but it didn't pick anything up.

 

[goldsilverpro]

If it's magnetic, it's probably Kovar, which is 54Fe/29Ni/17Co

 

[dlb92]

So I watched Lazersteve's videos but it doesn't say what to do once you get the black precipitate with smb.

If the barrel was Kovar wouldn't the HCL dissolve it eventually? It was in a 100C bath for a couple of hours and is still in one piece.

 

[Geo]

Kovar is iron based, AP has a hard time breaking it down. especially such a large piece. did you try a magnet to see?

 

[dlb92]

Kovar is iron based, AP has a hard time breaking it down. especially such a large piece. did you try a magnet to see?

Both the circles and the barrels are magnetic..

 

[Geo]

if the foils are liberated from the pieces, theres no real need to dissolve the whole piece. this may be a good time to read up on the sulfuric stripping cell. if you want to continue using AP, i would suggest doing small lots and pulling the Kovar out as soon as the foils come loose.

 

[dlb92]

if the foils are liberated from the pieces, theres no real need to dissolve the whole piece. this may be a good time to read up on the sulfuric stripping cell. if you want to continue using AP, i would suggest doing small lots and pulling the Kovar out as soon as the foils come loose.

That makes sense I was just curious to see what the metal underneath was and if it was worth anything since it didn't dissolve like the metal in the discs. I guess the discs have more gold than the barrels.

I read up on the sulfuric stripping cell but it seems like a pain for all the small pieces I have and I don't really want to deal with sulfuric acid. I actually have 4oz of material reacting in hot HCL right now in a glass container in a hot water bath in a styrofoam "cooler".

I'm thinking about turning the foils into a ring or something like that as a keepsake since I lost my original wedding ring.

 

[dlb92]

So when I'm done and I have a lot of dark green liquid and want to preciptate any gold that might have dissolved using SMB, do I just add SMB solution to the liquid and siphon it off like he does in the video to get to the mud?

I read the gold is black, does the washing with water or HCL turn it from black to gold or both?


I'm reading this:
http://www.goldnscrap.com/index.php?option=com_content&view=article&id=73:refining-karat-gold-and-silver-jewelry-using-inquarting-method-part-2&catid=25:scrap-gold-9k-24k&Itemid=20

 

[Geo]

if you rinse and wash according to Harolds instructions, it will be a light brown to tan color.

 

[dlb92]

What a disaster! My glass canning jar fell apart inside my cooler (note jar in picture) so I had to pan for gold particles out of 2 gallons of hot acid/water.

Regardless I got everything, here is what was done (about half) and the rest is in the acid again. All this from about 5oz of material and half is still in jar.

 

[dlb92]

here is completely stripped/demagnatized foil,

What do you think?

 

[goldenchild]

What a disaster! My glass canning jar fell apart inside my cooler (note jar in picture) so I had to pan for gold particles out of 2 gallons of hot acid/water.

At least you were clever enough to have it all contained outside of the jar. What was the final yeild of this lot?

 

[acpeacemaker]

Panning in 2 gallons of acid? I've come across the breaking issue before, and I just used a very large funnel and a charmin plug and got everything back fairly quickly.

 

[dlb92]

So i finally processed all those gold things in HCL. I bought a hot plate and stirrer and boiled it in 31% HCL for about 16 hours. This is what remains after washing.

It is still wet but I weighed 1.89583333333333333333 troy ounces.

How much is this worth?

 

[Geo]

hard to estimate wet.dry it and then weigh it.

 

[dlb92]

How should i dry it? let it sit for a few days?

hard to estimate wet.dry it and then weigh it.

 

[Geo]

use a heat resistant NON-metallic (Pyrex or corning-ware) container and gently heat them.cover them will a cover or at least cover with a paper towel to keep dust out.

 

[dlb92]

use a heat resistant NON-metallic (Pyrex or corning-ware) container and gently heat them.cover them will a cover or at least cover with a paper towel to keep

The glass ware weighs .11 pounds and once I removed the water the combined weight was .17 pounds so roughly .85 troy ounces out of 18 ounces of scrap

There is still some green at bottom once I took out water should I wash this with HCl some more?