bunch of questions about silver chloride

[theitalianhenchman]

Hi folks,
when using hcl to create silver chloride from nitric, how much hcl is needed to convert all the silver? 1:1? would that mean that a 10% hcl solution can only convert 100 grams?
I understand that it would be possible to use table salt too; what will be the ratio in that case?
Same question about NaOH and then about the sugar; what will be the ratio?
Lastly; can I do contacts and silver objects (silverware and other stuff) in a bucket (like for mylars) or will the reaction be too hot? I mean all the process, not just the dissolving,
Thanks

 

[Yggdrasil]

Hi folks,
when using hcl to create silver chloride from nitric, how much hcl is needed to convert all the silver? 1:1? would that mean that a 10% hcl solution can only convert 100 grams?
I understand that it would be possible to use table salt too; what will be the ratio in that case?
Same question about NaOH and then about the sugar; what will be the ratio?
Lastly; can I do contacts and silver objects (silverware and other stuff) in a bucket (like for mylars) or will the reaction be too hot? I mean all the process, not just the dissolving,
Thanks

The answers to both Salt and HCl are: Enough.
You need to study and search the forum, that way you will aquire the skills that is needed next time,for the next issue.
But in short, one mole of Chloride ions will create one mole of AgCl from one mole of AgNO₃.
One mole of NaCl has one mole of Cl^-as do HCl.
Assuming the 10% HCl is w/w that will give appr 1.2mol of HCl ie Cl^- per liter.
This means that one liter of 10% HCl can convert 1.2 moles of AgNO₃ to AgCl.

Then all the other factors come into play, temperature, other elements and so on.
So the most correct answer is: Enough.

Guesstimate how much you need, then add a bit less. For instance take 5-10ml and add HCl by drops until nothing more happens.
Multiply the amount used so your whole solution are counted for and add a few ml less.
Then you start adding in small increments until no reaction happens.

 

[Yggdrasil]

Hi folks,
when using hcl to create silver chloride from nitric, how much hcl is needed to convert all the silver? 1:1? would that mean that a 10% hcl solution can only convert 100 grams?
I understand that it would be possible to use table salt too; what will be the ratio in that case?
Same question about NaOH and then about the sugar; what will be the ratio?
Lastly; can I do contacts and silver objects (silverware and other stuff) in a bucket (like for mylars) or will the reaction be too hot? I mean all the process, not just the dissolving,
Thanks

Silver ware is pureish Silver + alloying elements.
Contacts can have all kinds of bad/difficult alloying elements in them. Cadmium, Tungsten and more.
So it will not be adviseable to mix them.

 

[kurtak]

Hi folks,
when using hcl to create silver chloride from nitric, how much hcl is needed to convert all the silver? 1:1? would that mean that a 10% hcl solution can only convert 100 grams?
I understand that it would be possible to use table salt too; what will be the ratio in that case?
Same question about NaOH and then about the sugar; what will be the ratio?
Lastly; can I do contacts and silver objects (silverware and other stuff) in a bucket (like for mylars) or will the reaction be too hot? I mean all the process, not just the dissolving,
Thanks

Hmmm - you have been a member here since 2017 & yet (in 6 years) you have not read/searched/studied the forum enough to have ALL of those answers --- so now you want me (or someone) to right a personal book just for you

I don't mean to be rude BUT after 6 years of being a member & you don't have answers to those questions --- ?????

Kurt

 

[Lino1406]

Correction: 10% HCl is around 3 moles per liter

 

[Yggdrasil]

Correction: 10% HCl is around 3 moles per liter

10% weight per weight will give 3 moles per liter?

 

[theitalianhenchman]

Hmmm - you have been a member here since 2017 & yet (in 6 years) you have not read/searched/studied the forum enough to have ALL of those answers --- so now you want me (or someone) to right a personal book just for you

I don't mean to be rude BUT after 6 years of being a member & you don't have answers to those questions --- ?????

Kurt

Hi,
I'm not taking offense, no problem about that. I'm not asking for a book just for me, is only that everytime I've read something about silver, the people explain the process and the chemicals involved, but not the quantity. Maybe it's just me though. After all I'm back after some time. I'm going to check more throughly

 

[Lino1406]

10% weight per weight will give 3 moles per liter?

10% solution weighs 1.05 kg/liter.
Of which HCl is 105g

 

[Yggdrasil]

10% solution weighs 1.05 kg/liter.
Of which HCl is 105g

Aah, I see now, I used 10% of 12M acid

 

[J.Najam]

Hello again everyone,

I tried converting silver nitrate to chloride to oxide to metal for the first time. Thank God it was a success. But im facing an issue now. How do I recover this silver stuck at the bottom giving me the mirror effect?

Its kind of stuck. Doesn't want to come off. What do I do here? Note where the flash reflects, its actually the mirror. Other crevices on the beaker can be seen as I tried to dislodge it from the beaker.

What are the suggestions about treating it?

 

[Yggdrasil]

Hello again everyone,

I tried converting silver nitrate to chloride to oxide to metal for the first time. Thank God it was a success. But im facing an issue now. How do I recover this silver stuck at the bottom giving me the mirror effect?

Its kind of stuck. Doesn't want to come off. What do I do here? Note where the flash reflects, its actually the mirror. Other crevices on the beaker can be seen as I tried to dislodge it from the beaker.

What are the suggestions about treating it?

How did you manage to do this?
And converting Silver Nitrate to Silver Chloride is probably one of the easiest things we can do, just add table Salt to it.
And you will get a whit fluffy precipitate.
So please can you enlighten us on your method?

Edit spelling

 

[J.Najam]

Purchased silver nitrate crystals, dissolved im distilled water. Filtered. Solution was cloudy. Refiltered, same result. Proceeded anyhow.
I used the sugar lye method for this process.

Yes I added some salt to precipitate the chloride, when it settled, I decanted the liquid, gave it multiple cold distilled water washes. Then added cold water ( dont know if this was right or wrong ) and started adding NaOH. That was the point where I saw the chloride coverting into a very fine ' OXIDE POWDER'. Fine enough to make my conversion observation somewhat tough. Moreover, I added sugar to it and could see the reaction following through. I guess my only tell was this mirror effect.

So here I am, stuck with a mirror on the bottom of my beaker. Any methods to remove and recover?

 

[Yggdrasil]

Purchased silver nitrate crystals, dissolved im distilled water. Filtered. Solution was cloudy. Refiltered, same result. Proceeded anyhow.
I used the sugar lye method for this process.

Yes I added some salt to precipitate the chloride, when it settled, I decanted the liquid, gave it multiple cold distilled water washes. Then added cold water ( dont know if this was right or wrong ) and started adding NaOH. That was the point where I saw the chloride coverting into a very fine ' OXIDE POWDER'. Fine enough to make my conversion observation somewhat tough. Moreover, I added sugar to it and could see the reaction following through. I guess my only tell was this mirror effect.

So here I am, stuck with a mirror on the bottom of my beaker. Any methods to remove and recover?

The Lye (NaOH) will convert the Silver Chloride to Silver Oxide which is pitch black.
This will create heat since it is exothermic so goggles are necessary.
The Silver Chloride need to be clean and have a bit of water on top.
Then add DRY Caustic Soda slowly while stirring well.
Then you add the dextrose which is also exothermic add the strup until no more reaction.
Wash well.

For now clean the beaker by dissolving the mirror and residue in Nitric.
Reconvert to Silver Chloride and add to the rest.

 

[J.Najam]

Silver Oxide which is pitch black.

I added excess NaOH. It didn't go pitch black. Was dark brown instead.

Silver Chloride need to be clean and have a bit of water on top.

Maybe i added to much water.

Rest everything was fine. I do have the resulted silver chunks.

For now clean the beaker by dissolving the mirror and residue in Nitric.

I don't have nitric, any other way maybe? Would sulfuric or hydrochloric do the job?

 

[Yggdrasil]

I added excess NaOH. It didn't go pitch black. Was dark brown instead.

Maybe i added to much water.

Rest everything was fine. I do have the resulted silver chunks.

I don't have nitric, any other way maybe? Would sulfuric or hydrochloric do the job?

Was your Lye in dry form?
HCl will NOT work, Sulfuric may, but I have no experience there.

 

[J.Najam]

Was your Lye in dry form?

Yes.

HCl will NOT work, Sulfuric may, but I have no experience there.

Alright. Noted with many thanks for your response.

 

[mikeman001]

I too have experienced this mirror like effect more than once. Rinse, dry, and some 3%h2o2 and a wrag or paper towel easily removed the thin"mirror" like film at the bottom of the glass vessel. My best guess is it is just a film of silver, as it only appears after the addition of granulated sugar. If there is an error in my judgment or assumption I welcome any input from those with more experience than I, for I dabble from time to time and consider this to be a hobby. Even though I just sold a 7.78g. button that was 23 karat I recovered and refined of gold that took close to 6 years to complete, as times are tough, I'm sure for us all! It kinda saved my back end!

 

[J.Najam]

I too have experienced this mirror like effect more than once. Rinse, dry, and some 3%h2o2 and a wrag or paper towel easily removed the thin"mirror" like film at the bottom of the glass vessel. My best guess is it is just a film of silver, as it only appears after the addition of granulated sugar. If there is an error in my judgment or assumption I welcome any input from those with more experience than I, for I dabble from time to time and consider this to be a hobby. Even though I just sold a 7.78g. button that was 23 karat I recovered and refined of gold that took close to 6 years to complete, as times are tough, I'm sure for us all! It kinda saved my back end!

That was a long wait to sell that button my friend. Goodluck on your future endevours.

 

[J.Najam]

Can anyone tell me what this ?

This is the sludge I have post decantation process. Could this be silver or am I wasting my time tryimg to further decant and recover if any PM?

 

[mikeman001]

Can anyone tell me what this ?

This is the sludge I have post decantation process. Could this be silver or am I wasting my time tryimg to further decant and recover if any PM?

No black upon lye addition, correct? Same issues here...I think that might be brass or nickel, probably brass... I suspect that the nickel layer is as thick as the silver that tops it.... Once the brass is exposed(on some) I'm leaning towards a heavy contamination of nickel and then brass.... Out of 200g. Of reverse electroplated "silver powder" , so far I've got roughly 32g. Of silver melted down and somewhat"clean"... So far... With a heavy brass/copper presence to clean along the way...