Screw up.

[dansdismantling]

Good afternoon members!! After more than two months off due to shingles on the face and in the eye I decided to try to work with the acids again and I had two different batches going both close to being done,so here’s what I screwed up I had one batch that I dropped the gold,mind you these were both dirty due to some oils I didn’t clean off of materials. So one dropped and the other was ready for AR I accidentally did the AR in the beaker I had just precipitated so now I have a combination of SMB with AR in it. Actually it was H202 34% and Hcl with now Smb. So the gold ore was re-dissolved. I was so irritated with myself I put everything away and went home. Just got back to the shop and the solution in the mishap beaker is full of slush???? I have water bottles that didn’t freeze and it’s like 40F here?? Did the smb mixed with H202 quagulate?? I’m stumped and disappointed I made this mistake. Now how to fix this,since it has Hcl smb and H202 34% steam it off and start over??? Any help would be greatly appreciated!!!!

 

[dansdismantling]

Good afternoon members!! After more than two months off due to shingles on the face and in the eye I decided to try to work with the acids again and I had two different batches going both close to being done,so here’s what I screwed up I had one batch that I dropped the gold,mind you these were both dirty due to some oils I didn’t clean off of materials. So one dropped and the other was ready for AR I accidentally did the AR in the beaker I had just precipitated so now I have a combination of SMB with AR in it. Actually it was H202 34% and Hcl with now Smb. So the gold ore was re-dissolved. I was so irritated with myself I put everything away and went home. Just got back to the shop and the solution in the mishap beaker is full of slush???? I have water bottles that didn’t freeze and it’s like 40F here?? Did the smb mixed with H202 quagulate?? I’m stumped and disappointed I made this mistake. Now how to fix this,since it has Hcl smb and H202 34% steam it off and start over??? Any help would be greatly appreciated!!!!

 

[dansdismantling]

I forgot to mention it is also saturated with silver chloride…..

 

[Yggdrasil]

I forgot to mention it is also saturated with silver chloride…..

Can you clarify.
AR or HCl/Peroxide?
Anyway anything with Chlorides will not dissolve Silver.
What was your material?

 

[dansdismantling]

Can you clarify.
AR or HCl/Peroxide?
Anyway anything with Chlorides will not dissolve Silver.
What was your material?

Hcl and high strength peroxide 34% dissolves gold no problem. The material is old pins in their sockets. Once the foils came off I removed the sockets. I dissolved the gold then precipitated the gold then accidentally dumped smb in it again. I got the two beakers mixed up.

 

[Yggdrasil]

Hcl and high strength peroxide 34% dissolves gold no problem. The material is old pins in their sockets. Once the foils came off I removed the sockets. I dissolved the gold then precipitated the gold then accidentally dumped smb in it again. I got the two beakers mixed up.

That is not AR and it do not need denoxing.
Just keep it close to boiling and stir it for a while.
Then add SMB, or other precipitant of your choice.
If that do not work, use a piece of solid Copper to cement it out.
If you have added too much SMB add water and heat it while stirring until the extra SMB dissolves, then siphon off the liquid.

Any thing with Chloride will NOT dissolve Silver.

 

[Martijn]

in your first post you say you did AR again in the precipitated beaker (decanted or added acids to the solution with SMB?)
and in your second post you said you added SMB to the precipitated gold.. which is it?

I forgot to mention it is also saturated with silver chloride…..

What is full of AgCl? The foils or the precipitated solution?
Any silver should have been filtered out before precipitating the gold.
so you got me confused.

 

[dansdismantling]

Can you clarify.
AR or HCl/Peroxide?
Anyway anything with Chlorides will not dissolve Silver.
What was your material?

They were late 60’s pins in sockets. Dissolved the base metals in hcl peroxide 3% then removed them from the sockets then dissolved using hcl and 34% peroxide. So the initial solution was 3% peroxide then the AR was composed of 34% peroxide and hcl. The decanting never happened because of the screw up.

 

[Yggdrasil]

They were late 60’s pins in sockets. Dissolved the base metals in hcl peroxide 3% then removed them from the sockets then dissolved using hcl and 34% peroxide. So the initial solution was 3% peroxide then the AR was composed of 34% peroxide and hcl. The decanting never happened because of the screw up.

AR is HCl/Nitric, nothing else.
So when you say AR and you do something else it gets confusing.

 

[dansdismantling]

AR is HCl/Nitric, nothing else.
So when you say AR and you do something else it gets confusing.

Sorry you’re correct. Is there a name for the high strength peroxide method? A gallon is $22 for 34% a mile away and works great at dissolution.
I simmered it all day yesterday and now I have about 1/4 the solution I had. The wire wrapped pins are Ag coated cu wires hence the silver chloride.

 

[Yggdrasil]

Sorry you’re correct. Is there a name for the high strength peroxide method? A gallon is $22 for 34% a mile away and works great at dissolution.
I simmered it all day yesterday and now I have about 1/4 the solution I had. The wire wrapped pins are Ag coated cu wires hence the silver chloride.

We call it HCl/Peroxide.
The AP is actually Cupric Chloride.
No need to boil long.
As long as it test negative just let the excess SMB and other water soluble salts dissolve and the siphon it off.

 

[dansdismantling]

in your first post you say you did AR again in the precipitated beaker (decanted or added acids to the solution with SMB?)
and in your second post you said you added SMB to the precipitated gold.. which is it?

What is full of AgCl? The foils or the precipitated solution?
Any silver should have been filtered out before precipitating the gold.
so you got me confused.

Sorry I’m doing this on my phone and it doesn’t update quotes so if out of order it’s my fault. I have AgCI because the wire wrapped pins are Ag coated Cu wires. Yes I tested them they’re silver coated copper wires. So I had two batches going one getting ready for dissolution of foils and the other I dropped with Smb. I then got called away to help my father came back and added high strength 34% peroxide and Hcl to the beaker that just had the smb put in it. So one beaker is untouched and one now has hcl smb 34% peroxide and h20.