How To Remove Plated Gold
Since 1989: Education, Aloha, & the
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-----
"Gold plating removal"
Q. How (what chemical) can I use to remove the gold plating from an old lookout?
Thomas Tomcik
- Burlington, Vermont
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A. Hi, Thomas. Since you lot don't say what the lookout case is made of, or what kind of cease y'all want to utilise to it, I'grand guessing you are trying to save the gold value of the watch?
The weight of gold per square foot for each millionth of an inch of thickness is .00147 troy ounces. If the watch is a moderately priced one from the last couple of decades the gold is probably about 20 millionths of an inch thick (nearly one-half a micron): that's .0294 troy ounces per square human foot. If the gold plated area is two square inches, it's .00041 troy ounces of gold. It'southward nearly 25 cents worth of golden for a relatively recent watch. Merely if information technology'south a really old pocket watch, the plating is a hundred times thicker and it could easily contain a substantial amount of golden. Please clarify what you are trying to practice. Cheers!
Ted Mooney , P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
^
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A. Hi Tom,
I am going to assume that you are seeking a manner to remove the gold from the watch for refinishing purposes non for salvage of the gold. Commencement of all many quondam watches had good thick plated coatings for longevity. If y'all are seeking to chemically strip the gold off the watch, it is hard to do without attacking the threaded and fine mechanical portions of the watch (sparse flash plated areas). If there is severe "brassing" (exposed base metal, i.e., brass or nickel, on the vesture edges), the stripping chemistry even with buffers will set on the brass severely, long before the thick golden plating has been removed chemically. Chemical stripping is fine for golden coatings 2 microns or less, but yous volition nonetheless have the disposal burden to contend with.
Mechanical removal is the safest using small files and paper sticks. In many cases it is faster than chemical stripping, especially on old pocket watches with 20 microns or more of aureate. The filings and "sweeps" can be sent to a refiner for reclaim of the gold. If you lot do a big quantity of watch refinishing it is worth it.
Hope this helps, Good Luck.
David Vinson
Metallic Arts Specialties - Leonard, Michigan
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A. Mr.Tomcik,
First check out what is the base material. If the base is brass and under coated with Nickel you tin can strip using Sulphuric acrid/glycerol based stripper, or sulphuric acrid/copper sulphate based stripper. If the base is SS you lot can strip it with sodium cyanide solution. If a electroplated watch whose effective surface area is between 0.10 to 0.xv sq.dm is plated for three.0 to 3.five micron it will accept approximately 40 to 80 milligrams of gold.
Venkat Raja
- Kitchener, Ontario, Canada
^
2006
Q. Hello, my proper name is Paul. I'm a pupil of Edinboro University of Pennsylvania Art Program. I practise some gold, silver and copper plating. Sometimes I need to recover the gilded plated on the "hoops" pieces. I need to know what chemicals I tin can utilize with rectifier blazon gold plate recovery system. We have a couple rectifiers at our disposal: 1 that is x Volt eighty Amp second is 4 Volts five-xxx Amp, and the third is 6 Volt ten Amp. This is used for copper plating. I don't want to use sodium cyanide -- likewise dangerous. Is the any other chemic that I can use for the solution to strip gold from copper and stainless steel? What rectifier will perform the best to strip gold from other metals? The left out metal materials are going to exist properly disposed, and just gold recovered and kept. Any help volition be appreciated. Paul.
Paul Pri
Hobby, Pupil - Erie, Pennsylvania
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March three, 2008
Q. Can anyone help? I accept a pretty rare military machine cap bluecoat that someone has gold plated for display! The base metal is bronze and my local jeweler tells me that if he tries to un-gold plate it electrically in an acid solution, it will eat the bronze away and ruin his £200 solution and my badge. I accept tried to gently rub it off only it's impossible ... any suggestions?
Howard Smith
- Cardiff, Wales, 1000. Britain
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March 4, 2008
A. Hi, Howard. Delight carefully reread David Vinson'due south reply -- I think it's what you are looking for. You demand to find a shop who volition mechanically smoothen the gold off. Good luck.
Ted Mooney , P.E.
Striving to live Aloha
finishing.com - Pino Embankment, New Jersey
^
April ten, 2008
A. 1000 ml H2SO4 in 2000 ml Pyrex casserole dish with approx. 1/4 teaspoon of glycerine well mixed into the H2So4. Submerge a lead bar or rod in the dish with plenty of the metal sticking out to connect the negative (-) pb. Obtain a variable power supply (ten AMPS MAX) @6-12 volts -- a bombardment charger [affil. link to info/product on Amazon] works great!). Connect the negative lead to the lead electrode. Connect the positive (+) lead to a cable with STAINLESS STEEL ALLIGATOR CLIP. Attach the item you want stripped to the clip, plough on ability supply and lower the piece yous want stripped into the acid/glycerol solution. PRESTO--CHANGO! The black residue is approx. 95%+ pure gold. You will need to dissolve and purify product with Aqua Regia or HCl and regular Clorox Bleach (halide leaching). This is simple, safer than HNO3 fumes. I accept been using this for years with peachy success. Good Luck!
Les M. Barnes, LAC
- Carolina Beach, North Carolina
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August 23, 2008
Q. Hi I merely read your letter and can yous go into more detail and explain the chemicals you lot are talking about on the halide leaching , bleach, etc. , I have the black mud and need to get back to gilded. Thanks Mike
Mike Giannio
- Millville, New Jersey
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September fifteen, 2008
-- this entry appended to this thread past editor in lieu of spawning a duplicative thread
Q. Hello
I've got a gold plated i.d. bracelet that I've had for 20 years. One-half of the gold plating on the bracelet has worn to exit it silverish and gold. What tin I use to remove all the golden to turn it completely to silver?
thanks
ronnie
Ronnie Judd
- Christchurch, New Zealand
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November 28, 2008
Q. I take about 20 pounds of 1/four inch x ane inch 360 brass rods that are gold plated. How do I recover the aureate?
John Urspruch
Musical instrument repair tech. - Brick, New Jersey
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Jan 11, 2009
A. You can it resolve in AR and recover it with sodium disulfate that is known as recovery chemicals and wash it with DI water
David Babu
- Kerala, Republic of india
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May 2022
Hi. While David is no doubt correct, the question for me is whether dissolving everything will be applied in an individual case. I don't know how you can make up one's mind until you know what you've got: purity of gold plating, thickness of plating, weight of brass compared to weight of gold, etc.
Regards,
Ted Mooney , P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Bailiwick of jersey
^
October ii, 2009
Q. I have some aluminum chain that is gold plated and I would like to remove the plating. Can it be done without dissentious the chain and what should I use?
Alexander Gray
- Bedford, Ohio
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March seven, 2010
Q. I have 8 sets of 24k gilded plated silverware and would similar to remove and recover the gilt but I need it step by step so I don't bugger any of it up.
Pookie Bazemore
- Norman, Oklahoma
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March 2010
A. Hi, Alexander; hi, Pookie. At that place are things that a competent person tin learn how to practise from written instructions, like painting a wall or baking a pre-mixed block. And there are things that a person won't learn to practice from stride by footstep instructions, but merely from practice with supervision, like rebounding a basketball well or piloting a jetliner. You can search the internet forever simply y'all will never detect stride-by-pace instructions for those things.
Every bit you are discovering on this folio, people practice tell you that mechanically polishing the gilt off may exist a better fashion to get than trying to dissolve it, just they can't requite footstep-by-step instructions for recovering the gold and not damaging the concatenation or flatware because it's an acquired skill. You can take it to a plating shop for removal of the golden, but almost surely this will cost money, not pay coin, because the value of the aureate is minimal compared to the effort in removing it. Skilful luck.
Regards,
Ted Mooney , P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Bailiwick of jersey
^
Jan 4, 2022
Q. How tin a person recover the gilt from 22 ct. plated stamps?
Rocky Hollingsworth
Hobbyist - Coos Bay, Oregon Us
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August three, 2022
Q. How-do-you-do at that place!
I have just washed my beginning gilt plating, a large bracelet, brass xv.v x half dozen.5 cm, plated with 18k prepare made mixture. I used a magnetic mixer and rectifier, my trouble is the color came out not nice and I want to strip information technology and redo the piece. I was reading the thread but got more questions: the sulfuric acid/glycol mixture suggested by Les Barnes seem easy enough, I want to know: practise I have to heat upwardly the mixture if so, what's will be the temperature? Tin can I employ the titanium sheet instead of the lead rod. Please explicate as I have no clue as to what I am doing.
Ellie Stocco
- Hong Kong
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Baronial 18, 2022
Q. I take nigh 25 pound of aluminum 'parts' that are electroplated in gilt. I understand that this gilt (although pure) is probably VERY thin (microns). Is there whatsoever meaning value in stripping and collecting this material through a precious metals vendor? I would Actually appreciate and respond, thank you for all the practiced piece of work you exercise on this site.
Jeff Constantine
scrap dealer - Mission Viejo, California
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August 19, 2022
A. Thanks, Jeff.
Yous are right that information technology is probable that the gilt is very thin. I would saw 1 of the items in half and try to gauge the thickness of the gilded with a jeweler'southward loupe or a microscope. Until you accept some thought of the thickness, it'due south impossible to estimate the corporeality of gold that is there. Once you do know the thickness, information technology'due south relatively easy. If it's thousands of dollars worth of gold, it'southward worth it despite the difficulties. If it's $35 worth of gold (and it might be a lot less), information technology's not going to exist worth the cost of recovery.
Regards,
Ted Mooney , P.E.
Striving to live Aloha
finishing.com - Pino Beach, New Jersey
^
October 5, 2022
Q. How do I strip the gold off the Indy Car where I tin sell it, I bought the indy car well-nigh 15 years ago it is of the 1998 GRAND PRIX OF Houston
Robert Acevedo
I am a home owner - Angleton, texas Usa
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October 6, 2022
A. Hello, Robert.
These cars are, as you lot know, collectibles. I think you'll get far more than from selling it as is than from stripping it. But if you insist, and then commencement past cutting the car in one-half and estimating the gilt thickness with a microscope. You'll want to know how much gilt is there (I suspect it'southward not much). I've heard of people scraping the gold off the contact fingers of printed circuit boards, and that may be the best way for you to go the gold off. Expert luck.
Regards,
Ted Mooney , P.E.
Striving to live Aloha
finishing.com - Pine Embankment, New Bailiwick of jersey
^
Jan 26, 2022
Q. Retired vet needs some answers. I would like to know if I tin accept and process it all back to gold. Is it diff. from the rest of this matter I have been ownership this stuff for years.
Mike Anderson
looking to help keep the earth - Des Moines, Iowa
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September 17, 2022
Q. HI ALL. I HAVE A STAINLESS ROPE Concatenation THAT IS Golden PLATED (SO I Assume THAT THIS IS A VERY THIN LAYER) AND I WOULD LIKE TO BRING Information technology Back TO SHINY STAINLESS. COULD I Simply Make clean IT VIGOROUSLY WITH SILVO (OR THE LIKE) TO Achieve THIS, OR WOULD Information technology NEED MORE SPECIALISED Attention? REGARDS, TODD.
TODD RYAN
- CAIRNS, QUEENSLAND, Australia
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December 10, 2022
Q. Indian woman wearing glass bangles. The glass bangles take some golden spots. I desire help for an easy procedure which I can do in dwelling house to easily remove and collect that gold .
sham shinde
- Navi-mumbai,Maharashtra, Bharat
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Dec 11, 2022
A. Hello Sham. Practise you have whatsoever reason to suspect that these golden spots incorporate meaning gilded value? Usually gold plating is thinner than a micron; sometimes much thinner. You might notice 25 cents worth of gold or less, afterward investing a lot of time, and spending much more money that that for recovery tools and chemicals.
Gold recovery is serious business, so the first step is determining how much gold is at that place. Good luck.
Regards,
Ted Mooney , P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
^
January 17, 2022
Q. How-do-you-do, I have been trying to refurbish an antique/vintage bracelet. I believe information technology was in one case gold plated. At that place are parts of the back side that are gold colour. The worn areas are various colors of copper, silver, and a nighttime grey pewter type metallic. I'thou non certain if base metal at this point, but as I took tarnish remover to part of it, information technology looked like copper. However, in the really worn areas the copper is worn abroad and a dark grey metal is showing. It's a very detailed piece of jewelry and I love information technology. Wanting to save the base of operations metal and as much detail piece of work equally possible. Do you take any thought what the base metal could be? If it is nickel or pewter, will it need a protective coating of something to keep the blueprint safe? So far I have gently tumbled it in a jewelry tumbler which removed the tarnish/oxidization but non plating. I've used extra fine polishing $.25 on my Dremel and removed some of the copper layer, very wearisome piece of work and it is taking a layer of the design. Whatsoever other mode to remove without chemicals?
Thanks for you, in advance, for all the info!
Lesa Craig
- Pflugerville, Texas, USA
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February 24, 2022
Q. I have fifty George Catlin commemoration coins.They are 24Kt electroplated over statuary. Are they worth trying to accept golden off?
Don Johnson
- Nashville, Tennessee USA
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February 24, 2022
A. Hi Don. Looking at similar coins on E-bay, they are not gold plated, and are listed for $12-$fifteen each. If yours are gold plated, I run across no mode of knowing, without testing, how thick the aureate is . . . merely I doubt that it'due south more than 20 or thirty millionths of an inch (you lot would have lost the engraving if the golden were thick). And so do a calculation. Personally, I'd try to sell them on E-bay or Craigslist rather than destroying collectibles. I'd propose the aforementioned for your Rolex if you have ane :-)
Regards,
Ted Mooney , P.E.
Striving to alive Aloha
finishing.com - Pino Embankment, New Jersey
^
July 18, 2022
Q. Hi. I've constitute this blog the most informative in compare to others.
Here is my question. I have a one-time Omega from 1940's.
The back says "PLAQUE OR Fifty 80 MICRONS".
Can this exist called solid gold? And what would the carats exist? Thanks
Rumpelstiltskin Asecas
- Los Angeles California
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November 2022
A. Hi Rumpelstiltskin. I call back that engraving is in French and is saying "Plated with gilt 80 microns thick". So, no, information technology's not solid gold; rather, it has a plating a fiddling over iii thousandths of an inch thick -- which is quite thick for gold plating.
Regards,
Ted Mooney , P.Eastward.
Striving to alive Aloha
finishing.com - Pine Beach, New Bailiwick of jersey
^
October 31, 2022
Q. Please, sir aid me for recover the gold from glass bangles.
Considering I have much scrapped bangles.
Sham B. Shinde
- Mumbai, Maharashtra, Republic of india
^
November 4, 2022
A. How-do-you-do Sham. As we've said repeatedly, recovery of gold is serious business concern, and step 1 is determining how thick the gold plating is. This is absolutely essential, not just to know whether the endeavor is worthwhile, just to runway the golden content through each subsequent step so the appropriate corporeality of chemicals can be added.
Anyone who skips this stride is not but being foolish, but is only playing, and playing with very hazardous chemicals to boot. So, please start by telling us how thick the golden plating is. Cheers!
Regards,
Ted Mooney , P.E.
Striving to live Aloha
finishing.com - Pine Embankment, New Jersey
^
Apr 22, 2022
Q. I restore classic autos, and in the process of acquiring original stainless or chromed trim pieces, I take encounter many that accept been gold plated. This is non a desirable thing to a restorer. Every bit an instance: a chrome plated wire cycle with stainless steel spokes that the spokes have been golden plated. Is in that location a manner to remove the gold plating from the spokes without damaging the chrome cease on the rest of the wheel? I am not interested in recovering the gold, just salvaging the archetype car office. Thanks Fred
Fred Kelly
- Deland, Florida USA
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April 24, 2022
Q. How tin I remove the gilded plating trim on the bathroom faucet? The finish beneath the plating, which appears where the plated trim has worn downwards, appears to friction match the aforementioned brushed nickel as the residuum of the faucet.
Harvey Weiner
- Dallas, Texas, USA
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April xxx, 2022
A. You lot have run across the problem of dissolving a highly chemical resistant coating (gilded) without attacking the much less resistant substrate, usually nickel.
Golden stripping involves chemicals like cyanide and is certainly non suitable for amateurs.
Your best bet would be to take advantage of the fact that gold is much softer than any is underneath and easily wears away -- which is ane reason that it is a very poor finish for bath or motorbike fittings. It is likewise very expensive so you tin can be certain that it volition be thin!
Attempt a brass brush on a Dremel type hand tool.
Geoff Smith
Hampshire, England
^
Recovering golden from the one-micron plating on glass bangles
May 17, 2022
Q. Repeat question: ask you sir, these drinking glass bangle having nearly 1 micron layer. AR process I did, but I am non successful. Help me for proper procedure.
sham shinde
- Mumbai, Maharashtra , Bharat
^
May 22, 2022
A. When using aqua regia (AR) to dissolve gold, almost of the literature says to pre-mix information technology in the ratio of 3 or four parts muriatic acid (HCl) and 1 function nitric acrid (NHO3). This will certainly dissolve the aureate but, when attempting to precipitate the gold with a reducing agent, such equally sodium metabisulfite, sodium sulfite, etc., you will find that the gold will not drop out. The usual reason for this is that some complimentary nitric acrid still exists in the solution. The gilded won't precipitate until all the nitric is removed. The traditional method for removing the complimentary nitric acrid is to evaporate the solution to a syrup, add a few ml of HCl and evaporate further. This is repeated 3 or 4 times or, until all the nitric has been driven off. However, this is a time consuming cumbersome method.
A much better method is to not premix the 2 acids. The trick is to add the acids separately and only use enough nitric to dissolve the gold - no more, no less. Any combination of HCl and HNO3 volition dissolve gold, fifty-fifty in a 100/i or 1/100 ratio. An excess of HCl will not hinder the precipitation but any excess of nitric can crusade bug.
Here'southward how I would practice information technology.
(1) Put the material in a large chalice and barely comprehend it with HCl, merely. To avoid the possibility of a foam-over, the textile should not occupy more than 1/iii-ane/2 of the chalice capacity.
(ii) Heat the HCl to most 65 °C on a hotplate. In case of a mishap or beaker breakage, it is best to first place the beaker in a ceramic dish that is fabricated to withstand direct estrus. The just one I know of that will do this without breaking is a Corning Ware "StoveTop" dish.
(3) Add together a few ml of HNO3. Yous volition observe gassing and the aureate will start dissolving.
(4) When the reaction subsides, requite the solution a gentle stir and add a few more ml of HNO3.
(5) Echo until all the gold is dissolved. Terminate calculation nitric.
(vi) Allow to cool and cascade off the solution into some other beaker. Rinse the material well, using as little water as possible. Save the rinses and go along them carve up from the main solution.
(6a) If the only metal being dissolved is gold, there is probably a lot of life left in the solution. You lot could probably employ this aforementioned solution to process more material. If you do this, follow the same process above.
(7) Combine the solution(southward) and rinses. Add enough extra h2o then you end up with a total book that is almost 4 times the volume of HCl that you started with.
(8) Filter the solution until it is crystal clear.
(9) Precipitate the gold with the precipitant of your choice. I usually utilise sodium sulfite. About 2 grams will precipitate i gram of gold. I prefer to dissolve it in a pocket-sized corporeality of hot water before calculation it to the solution. If there is no backlog nitric, the brownish golden powder volition offset dropping immediately. If in that location is a footling excess nitric present, the precipitant will first react with the excess nitric before the gold starts dropping. To brand sure all the gilded has dropped out, the solution can exist tested past adding a drop to a spot plate (or white plastic spoon) and so calculation a drop of stannous chloride solution (1 gram dissolved in virtually xx ml of a 50/fifty HCl solution diluted with water). A purple or black color indicates that at that place is still gilt present in the solution. In that instance, more precipitant is needed.
(10) Filter the gilt powder, rinse it well with hot water, dry it, and melt it.
Notes:
(1) This procedure generates lots of baneful, toxic fumes and a fume hood is a must. Piece of work with practiced rubber gloves and a plastic total-face shield.
(2) To get an thought of the acids needed, one troy ounce of gold requires about 125ml of HCl and 25-30 ml of nitric.
(iii) Instead of using aqua regia, this gold plating can exist dissolved in a combination of HCl/hydrogen peroxide (H2O2) or HCl/chlorine laundry bleach (sodium hypochlorite - NaClO). Every bit with nitric acrid, the H2O2 or NaClO should be used in modest quantities. Before calculation the precipitant, any excess of these tin be removed by merely heating the solution for 2 or 3 hours. Get it quite hot simply don't boil.
Chris Owen
- Nevada, Missouri, Us
^
May 2022
Wow. Chris knows his stuff!
However, "nearly" ane micron means less than 1/16 the thickness of light gage aluminum foil -- so I promise yous accept a lot of those bangles if you desire to brand money from it :-)
Skillful luck,
Ted Mooney , P.E.
Striving to live Aloha
finishing.com - Pino Embankment, New Jersey
^
June 2, 2022
Q. A store has a necklace for sale composed of 20 coins connected by metallic loops soldered from one to the next. They are flight eagle pennies from 1857 and 1858. Depending on condition, they could be worth anywhere betwixt $30-$100 each. The matter that makes them worth adjacent to aught, is that someone plated the matter with golden. Those coins are 88% copper and 12% zinc ^ nickel . Is there a way to get that aureate off so they could be viable collector coins again? If there is, then information technology makes a audio investment. If not, information technology's just a marvel made by someone who had no inkling on what they were destroying. Cheers in advance. Ray
Raymond Harris
- Gainesville, Florida, USA
^
June 2, 2022
Oops I just posted a question regarding the removal of gold plating from United States Flying Eagle pennies, the beginning pocket-sized cents, officially stamped for general circulation in 1857 and 1858. I wanted to encounter if information technology could exist washed, NOT to recover the gold, but to bring the pennies back to a state where they'd accept some collector value. However I gave the wrong base metals. They are composed of 88% copper and 12% NICKEL, non zinc like I stated. If the acid eats into either metal, then it's not worthy of pursuit. Sorry for the error.
Ray
Raymond Harris [returning]
- Gainesville, Florida, USA
^
June 5, 2022
A. Likewise the aureate, there is likely to be a nickel plated layer between the gilded and copper. Both would take to exist removed, probably using different solutions. Also, it is very possible that the solder has damaged the coin. Even if it hasn't, the solder must likewise be removed in a separate operation.
To remove these 3 things (gold, nickel, solder) would require some experimentation and the merely thing you have to experiment with are the coins themselves.
In my opinion, information technology is unlikely that the coins could be successfully restored to their original status.
Chris Owen
- Nevada, Missouri, The states
^
June 5, 2022
Q. I had some Flight Eagles back when I was a kid, and as I think there was no cladding between the copper and nickel. The coins had a solid grayish tinge, then I ever idea the planchets they were stamped from were poured equally an alloy. Or are you suggesting that they might accept been dipped in nickel for the gilded to adhere better to the money?
I took a close look at them yesterday, and a handful were in the extra fine category while the bulk were very good to fine. That means this was done long ago when they had no numismatic value, and I suspect the plating is thicker than what y'all get today. If truthful they would have to exist dipped longer. More problems.
As far as the solder goes, I thought I'd be able to shave it off the edges. They're smooth, like today's pennies, and there's no overlap slop on either the obverse or contrary sides of the coins. Someone was very careful.
A jeweler suggested polishing off the gold, but that's a large no, no, in the coin globe, and would cut values in half.
Pondering all this is foolish to a caste, but if my curiosity, and hopes for a potential profit had not been stoked, I wouldn't have learned so much virtually the world of finishing. Chemistry was non my strong conform, simply I confess I've learned a bit near a subject area that had never crossed my heed until a few weeks ago. Learning is always a good thing.
Ray
Ray Harris [returning]
- Gainesville, florida, USA
^
June five, 2022
Well, upon further research due to the response to my post, I learned virtually a Nickel wash preventing copper from intermingling with gold plate and things like "skin outcome resistance". Information technology looks like there's no way to bring those great old coins back. I'grand glad and sad that they were all from 1857 and 1858. If they were some of the two,000 presentation coins from 1856, they'd be ruined coins normally worth six to ten one thousand each! So tantalizingly shut and even so so far.
Cheers. This wandering has been an education.
Ray
Ray Harris [returning]
- Gainesville, Florida, USA
^
September 15, 2022
Q. Hi sir, very nice piece of work.
How can I recover gold from gold plated watches and ss gold plated watches?
thank you
mohammad saleem
- salalah oman
^
October 2022
A. How-do-you-do mohammad. Thanks for the kind words. But starting the thread over volition take us in circles, and exhaust the patience of those who take so helpfully responded already. Please try your all-time to phrase your questions in terms of the great answers already provided past David Vinson, Geoff Smith, Chris Owen and others. Thanks.
Regards,
Ted Mooney , P.Due east.
Striving to live Aloha
finishing.com - Pine Beach, New Bailiwick of jersey
^
March 29, 2022 -- this entry appended to this thread by editor in lieu of spawning a duplicative thread
Q. Hello,
I bought an inexpensive watch that has rose gilded plating on its case. The coloring began to peel off and at present the watch looks actually bad. And so I want to remove the rose gilded coloring at home, if possible. It seems like in that location is some kind of chemicals (some type of acid?) I tin can use to remove the coloring. Could anyone please help?
Please see the video of the watch I uploaded:
Mike Kim
- Glenside, Pennsylvania The states
^
March xxx, 2022
Q. How-do-you-do,
I asked a question about how to remove rose aureate plating on my lookout man. I forgot to mention that the base is stainless steel and that I accept no intention to recover rose gilded plating since it is probably fake anyways.
I hope this help answering the question. Thanks.
Mike Kim [returning]
Student - Glenside, Pennsylvania United states of america
^
April 4, 2022
A. Love sir, you only smooth that watch slowly until all plating is removed.
bhupesh mulik
cac admixture - bombay,india
^
July 17, 2022
Q. How tin you lot remove gilt plating from a 1923 Silvery dollar. Information technology has turned very night. Thank you lot in advance for any assistance.
Marsha Simpson
- McKinney Texas U.s.
^
July 2022
A. Hi Marsha. Your enquiry sounds very similar to previous ones. The way to remove the plating is to polish it off. But if this is your first endeavour at jewelry polishing you lot'll be putting your memorabilia at run a risk. Taking information technology to a jeweler is an option, but maybe not an affordable ane. Good luck.
Regards,
Ted Mooney , P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
^
July 19, 2022
Thank you
I volition check with a professional.
Marsha Simpson [returning]
- McKinney Texas U.s.a.
^
April 26, 2022
Q. Dear sir I desire to recover aureate from used gold plated bangles or jewelry. These ornaments accept ii or 3 micron gold plating. I am trying to recover gilt past potassium cyanide but I don't know which chemic to add in KCN. I saw a video of gold dissolved in KCN in merely ten seconds; I asked him which chemic he used just he will not tell me the answer.
Delight help me
Shammi soni
- udaipur rajesthan India
^
May 2022
A. Hello Shammi. Chris Owen has told us the whole aqua regia process step-by-step above. Please inquire for clarification on any step y'all did not understand. If you still prefer to get with the potassium cyanide approach, letter 12200 might be a meliorate starting betoken. Good luck.
Regards,
Ted Mooney , P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
^
May iii, 2022
Q. Howdy,
I want to know how to remove aureate plating from Gold Plated Nickel Foil. I do not want to destroy the Nickel foil. Just want to remove the gold from the nickel foil then that I can sell the manifestly nickel foil in the marketplace.
Sakshi Goel
- Delhi, Bharat
^
May 4, 2022
A. Hello Sakshi, yous tin can contact a precious metal supplier in India to supply you lot with a proprietary gold stripper designed to strip gold from a nickel underplate. There are not- cyanide gold strippers available as well.
Mark Baker
Procedure Engineering - Phoenix, Arizona USA
^
October 28, 2022
Q. Dears, I have a vintage Chanel gold plated necklace from the 80s, and the gold layer is wearing off on the bondage. I want to attempt to restore it myself. However I don't know the metal below. Do you think I can use a gold plating kit to plate it anyway, or the original gilt layer needs to exist removed before information technology can be replated? Thanks in accelerate for your advice!
Xuelin
xuelin chen
- le Bouveret, Valais, Switzerland
^
A. Hi Xuelin. Information technology is not necessary to remove the existing aureate plating. Whether a person who nosotros know nothing about will be successful replating an old necklace of unknown material, using an unknown gold plating kit, is probably beyond people's power to guess though :-)
Luck & Regards,
Ted Mooney , P.East. RET
Striving to alive Aloha
finishing.com - Pine Beach, New Jersey
^
January 7, 2022
Q. I desire to know how to recover gold from aureate waste water, this water generally comes from electroplaters, who do gold electroplating; afterward some fourth dimension their water gets dead and they cannot utilise this water for further electroplating. Kindly help
Sakshi Goel [returning]
- Pune,India
^
"Recovering Precious Metals"
by George Due east. Gee
from Abe Books
or
Affiliate Link
(commissions from your purchases brand finishing.com possible)
January 2022
A. Hi Sakshi. That's a very broad question. The gold tin can exist recovered by ion exchange, electrolytic recovery, or chemical precipitation. What is the gold concentration, and what other contaminants does the solution contain?
Regards,
Ted Mooney , P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Bailiwick of jersey
^
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