Silver recovery from plated flatware,and other items
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- เผยแพร่เมื่อ 3 มี.ค. 2015
- This video demonstrates a very unusual methode to recover silver from silver plated flatware,using Hydrogen Peroxide and hydrochloric acid.The video is for demonstration purposes!!!
- วิทยาศาสตร์และเทคโนโลยี
The process you are using is called AP (acid/peroxide). You created copper(II) chloride. You could have driven the the dissolution of the copper by bubbling air through the solution with an aquarium pump. After you created the first green solution, there's no need to make more. Use the same solution over and over. If you increase the HCl proportions to 4 parts HCl to 1 part hydrogen peroxide (3%), the solution will happily chew up copper for a very long time. If you turn off the air, the solution will turn dark, almost brown. If you continuously oxygenate the solution with an air bubblier, the solution will continue to dissolve copper. The solution builds over time. Decant a portion of the pregnant leach when it turns black and add fresh HCl. The overage can be recycled and disposed of or stored to start a fresh batch later. This works well with gold recovery from electronics. You can see some of that on my channel.
Do you really think this happened in 15 minutes?!?!?
It depends on concentration of the acid. Too, base metal makes the difference. Solid copper would not have dissolved that fast. If it was pewter (zinc), you wouldn't even need the H2O2. Bronze and brass has tin and zinc which reacts very fast to HCl. Temp of the reaction should tell you something about what is going on. If the solution gets relatively hot, it's a highly reactive base metal like zinc or tin.
Geo Thanks!! I'm going to check out your channel and may sub (I have to clean up all of the subs I've accumulated and dump some). BTW, before I got to this video I saw one where the guy used salt, hot water and a battery charger. He got what I think are impressive results in about 8 minutes. Have you seen that one?
great video bloke
This dude needs to take a science class refresher.
Morlanius why you say that? he separated the silver from the base metal..do you have a better way?
His understanding & use of english is terrible, he is removing silver yet he keeps discussing copper. So now we have silver chloride, NOW WHAT?
I have some questions about how to hook up the battery charger so that I can do more than one piece of silverware at a time
Did you use water in your solution?
what are the names of the chemicals also can base metal be salvaged and how many grams on average of silver would you recover also what purity would the silver be ?
The person used hydrochloric acid and hydrogen peroxide.
Yes, the base metals can be recovered, but it is not usually economical to do so - except possibly through cementing any copper out of solution by cementing onto iron.
The percentage by weight of silver on a plated piece can vary tremendously. For really cheap plated goods, probably less than 1% is silver. For really good (usually stamped something like EHSP for Extra Heavy Silver Plate" the percentage may be as high as 5%.
For silver plating, the silver purity itself will be pretty high, but I don't recall if there are any national standards. It is probably not pure, as pure silver is rather soft and would damage easily.
How much of each chemical are you using?
Im new to this is the resulting silver at the at the video calld silver chloride an if it is i think we heat it up an break down da udda shit then stir precepate with copper an then leave it to dry is that gigr
Hcl,+h2o2 removoed aluminum sliver process
Honestly there might be more money in just scrapping it as brass. Then you also save the time and expenses for the peroxide and acid
You can still scrap the brass base metal.
I have tin silver metal..i want to recover both silver and tin..how can i separate silver from tin with hcl ??
Hydrochloric acid will turn tin into water soluble tin chloride, and hydrochloric acid is mixed with water because it is gaseous on its own at room temp, just heat it to speed it up and you will be left with pure silver powder. Have a coffee filter under the silver so you don't lose it, or maybe just evaporate the hydrochloric and water that is left.
Is there any way to get the copper back from the used solution?
Of course it is.Afterall it is just copper diluted a little acid and water.You just have to neutrelize the acid and evaporate the water.
TI mediaholding add stainless steel to the solution, the copper bonds with he steel.
+Guy Foster
add aluminum foil copper comes out of solution
@@jaaamie3223 Copper diluted? ...How bout throw a bar of steel in the solution and precipitate the copper that way?
yeah,. more HCL. would go far.. what concentration H2o2 did you use. have you thought of using lye? I use lye to dissolve the metal inside a hard drive disk, after 12 hours all i have left is a very thin foil of platinum group metals. real thin stuff,.but adds up if you have a a few hundred disks. you need to pass the edge of each platter over a bench grinder, then score the surface of each disk before immersing them into the lye and cold water bath.
bantalee2002Your a Bit off task don't you Think? The Subject is "How to Remove Silver" Not PT Group Metals, Unless you have Special Disc's that have a Silver Plating!
Valorie Hudson yeah i guess i digressed a bit. sorry.
Sir how to plating thick plating on wax toy
You would have to cover the wax with some sort of conductive layer first, like graphite. But why would you want to silver plate a wax toy?
You lost me at 'the silver is the catalyst for the solution'. You dont understand the process youre trying to explain :-/
Okay so every video on the internet shows u literally half the process.... Once u get the material off then what..... I wanna see someone do this from plated material to a piece of pure silver start to finish....
FFS, you need to be wearing gloves.
This Guy needs to chem 101.....!
Why are so many mutes making videos? Can you people speak?
I agree even if your voice is bad it's better than no voice
.
So fing bad!
i fell asleep watching this and learned nothing
Nonsense video no description.
lame, just lame