Gold Recovery Electronic Scrap Gold Plated Pins

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  • čas přidán 28. 02. 2016
  • To contribute: paypal.me/sreetips?locale.x=e...
    How to get pure gold from these pins. Gold and silver for sale on my eBay store user name is: sreetips (formerly bafelous)
  • Věda a technologie

Komentáře • 527

  • @titohaggardt6125
    @titohaggardt6125 Před 2 lety

    I enjoy these CZcams short videos. I like your old ones for training, Please continue the educational side, the reactive series has surprises, I have enjoyed sharing your surprizes.

  • @a.z.b.c.9333
    @a.z.b.c.9333 Před 6 lety +1

    Keep rocken sreetips, another great video!
    Rick in Pantano, AZ. yes the ghost town

  • @christinebaker7051
    @christinebaker7051 Před 7 lety +3

    Absolutely fascinating! Thank you.

  • @josephpecoul6532
    @josephpecoul6532 Před 4 lety

    Really nice to find some of your videos that ive not seen yet

  • @dunnoyet3777
    @dunnoyet3777 Před 8 lety +11

    17 downvotes? I don't get it, how much more thorough could this guy be?

  • @russellpindar7717
    @russellpindar7717 Před 8 lety

    Another really interesting video. Thanks.

  • @kevengraham4791
    @kevengraham4791 Před 4 lety

    glad you started narrating your videos

  • @richardoconnor7162
    @richardoconnor7162 Před 6 lety

    glad you did this to show the and the cost.

  • @jackierainey4117
    @jackierainey4117 Před rokem

    Amazing 👏
    I'm learning so much thank you

  • @JohnC-fv2we
    @JohnC-fv2we Před 8 lety

    +sreetips finished product looked amazing just straight gold. great job!

    • @sreetips
      @sreetips  Před 8 lety

      Thanks for the comment.

    • @medsair1166
      @medsair1166 Před 4 lety

      @@sreetips Hello
      I Hope You are well
      I found your mail adress on CZcams
      Please what is the thickness of gold plating if this pins/connectors ?
      please on 1 kilogram of pins and connectors gold plated with 1 μ(microns)
      How much is the average yield of gold in gramms
      Waiting for your Reply
      Thank you

  • @GarbageKnight
    @GarbageKnight Před 5 lety +3

    when i worked on a military base, i would raid their construction dumpsters, because they would just throw this stuff out. i would turn around and sell it on ebay for really good money.

  • @FlashM
    @FlashM Před 6 lety

    well done!! Very nice video for knowledge....Thanks Bro..

  • @569139
    @569139 Před 5 lety +8

    Would this process work for Gold plated connectors from PC Motherboards and such? Thx Also can Urea be used in lieu of Sulfamic Acid?

  • @prospectorpete
    @prospectorpete Před 5 lety +8

    how do you treat the magnetic pins

  • @donaldparlettjr3295
    @donaldparlettjr3295 Před 4 lety +1

    It's fun to go back in time. The lack of Sreetips written on everything an not a word spoken and hearing the Darth Vader breathing is weird.

  • @alexpmK3
    @alexpmK3 Před 2 lety +1

    sreetips Brother . You are proverbially, DA MAN !! Easily more than an accomplished beginner Sir 🙏⭐💯😎🌎

  • @coreyblanchard5072
    @coreyblanchard5072 Před 8 lety

    dude cool video I've been refining for like the past month and i saved all my little bb's of gold and melted them down, mine looks about like yours, so that gives me hope! alot more than I thought it weighed :D

    • @sreetips
      @sreetips  Před 8 lety

      +Corey Blanchard Congrats - good luck with your refining.

    • @jameschapman7996
      @jameschapman7996 Před 2 lety

      Just melt it out gold melts a higher temperature then led copper nickel so if you have shot gold jewelry just melt it out

  • @agentorange4807
    @agentorange4807 Před 5 lety +1

    In our plating shop, we have a big vat of techni strip 11 which strips the gold!

    • @robertbrawley5048
      @robertbrawley5048 Před 4 lety

      Agent Orange does the istripper flakre thr gold off or put jt in the solutions

  • @raziel3726
    @raziel3726 Před 5 lety

    Good video!!

  • @spawnvader7103
    @spawnvader7103 Před 6 lety

    respect bro I'm not going to do all that for 7.4 grams of gold , it feels it it's was me doing and I have a headache

  • @pedz07
    @pedz07 Před 4 lety

    i love the videos would you be able to do a video where you recover the base metals like copper would love to see it

    • @chosen1one930
      @chosen1one930 Před 3 lety

      He does its called stock pot and treating the soultions with certain metals, if you want copper put in a piece of angle iron

  • @ariscobos3712
    @ariscobos3712 Před 5 lety

    Insane man

  • @kwxj61b
    @kwxj61b Před 6 lety

    Thanks!

  • @donhouse2920
    @donhouse2920 Před 6 lety

    very cool bro thanks for the education one quick question how would a regular person like me get a hold of nitric acid like that?

    • @sreetips
      @sreetips  Před 6 lety

      Donald, getting nitric acid seems to be a problem for many. I buy mine from GFS chemical. But you must have a company name, and they won't ship to a residential address.

  • @ovidiuanghel3998
    @ovidiuanghel3998 Před 8 lety +2

    nice video, congratulations!
    I also have a question, if you have on your nitric digest, metastanic acid, how do you deal with that?

    • @sreetips
      @sreetips  Před 8 lety +1

      +ovidiu anghel The best thing to do is incinerate. Put the foils in a flame proof melt dish, then heat to redness. Avoid melting. Upon heating the metastannic acid turns to a compound that does not dissolve well in acid, plus it can then be filtered out without gumming up the filter paper.

  • @LebronJames-bz5fn
    @LebronJames-bz5fn Před 8 lety

    This is where watching skylanders got me

  • @geraldchilds4880
    @geraldchilds4880 Před 5 lety +50

    It would have been easier just to pan for gold in some random creek.

    • @NarrativeNonsense
      @NarrativeNonsense Před 4 lety +2

      Yes and probably get more than that

    • @georgesoreass3049
      @georgesoreass3049 Před 3 lety

      SOrry this is the California gold rush

    • @ingo98
      @ingo98 Před 3 lety

      depends where you're located. You cant find gold just anywhere :D

    • @hannible1002
      @hannible1002 Před 2 lety +1

      Yea but if you got a kilo you make 300 bucks

    • @sreetips
      @sreetips  Před 2 lety +4

      We “pan” for gold at yard sales, thrift stores, resale shops, consignment stores. It’s everywhere. Silver too.

  • @davidcrandall1548
    @davidcrandall1548 Před 5 lety

    Even so. Not a bad yield.

  • @velasquezjazz91
    @velasquezjazz91 Před 8 lety

    5lbs is 2267.96 grams. . I've noticed in a couple videos the math seems to be off a bit. still a great video!

  • @Africangold-vq9zy
    @Africangold-vq9zy Před 4 lety

    nice work

  • @quantumleap359
    @quantumleap359 Před 8 lety

    Good vid, very informative. Thanks.

  • @rlld23
    @rlld23 Před 4 lety

    Isnt there a simpler way? Like burning or boiling or some other less toxic way?

  • @maximusura7029
    @maximusura7029 Před 7 lety +46

    A lot of work. But respect.

  • @cobra4186
    @cobra4186 Před 11 měsíci

    Nice!

  • @shaneyork300
    @shaneyork300 Před 5 lety +2

    Mil Spec Pins are (in my opinion) the 2nd best ewaste item you can get. I think if I had someone hand me a kilo of it, I would be have 7.4grams is alot of gold! 👍👍
    BUT after watching this vid I know I'd have alot of work to do!!😩

    • @shaneyork300
      @shaneyork300 Před 5 lety

      @@bettycarrigan331 Hi Terry, I've watched alot of vids since this one. I don't remember everything in it, so I'd have to rewatch it. I see I said 7.4 grams a kilo! Might have been something in the vid to make me calculate that number. If you want to do this yourself study up on it. These videos of Sreetips are very educational, I've watched everyone of them and when I start to refine I'll watch them again and take detailed notes, also there is a book that he recommends in a few of his vids (It's like a refiners bible)!! I know standard fully plated pins on average yield about 1gram per kilo of pins! However mil spec gold pins are a much heavier plated pins than your average ones. After hundreds of hours studying I think it's safe to say that you should expect 2 grams or more per kilo of pins!! Again I'd have to rewatch this vid to see why I put 7.4 grams. It might be that he got a high yield from a batch and I just did the math and got 7.4
      I'll tag this video to rewatch, I don't know how soon that will be, but as soon as I do I'll give you my opinion again. Probably a little more accurate than this one!
      Have a GREAT Day!!!

    • @shaneyork300
      @shaneyork300 Před 5 lety +1

      @@bettycarrigan331 Hi again Terri, I just watched again!! I was impressed with the yield. I remember now very well, this was probably the highest yield I've ever seen from gold pins of any kind!! 7.4 grams per kilo is alot! If you can get it for free!! Don't buy the scams online. I've never paid a penny for gold ewaste and very little on gas for vehicle. The way I learned about getting as much ewaste as you want (if the area you live in allows it) is watching "Ewaste Ben CZcams" he has alot of info on getting ewaste!!! He also has an old video on how to start your own ewaste company! I highly recommend you to watch that, as well as keep watching Sreetips!!!

  • @patrickgalloway5078
    @patrickgalloway5078 Před 5 lety

    This system is simpler and a whole lot less chemicals used and the waste is way cleaner

  • @andrewh4282
    @andrewh4282 Před 8 lety +1

    Good proof of concept. I'm sure on a large enough scale this could prove profitable. Is it possible to recover/recycle any of the reagents (Nitric acid etc?)

    • @sreetips
      @sreetips  Před 8 lety

      The nitric gets completely consumed during the reaction. The only other metal is copper, and it's not worth the time and expense to try and recover and refine.

  • @bigbird39
    @bigbird39 Před 8 lety +30

    ALL THAT HARD WORK FOR JUST THAT?... DAM

    • @abdelnacer7721
      @abdelnacer7721 Před 7 lety +3

      lol,same reaction !

    • @GabyGaby-bn9bv
      @GabyGaby-bn9bv Před 7 lety

      cristian lopez ym

    • @vincentshelpfulhints4085
      @vincentshelpfulhints4085 Před 6 lety +1

      I think this was just showing you the process I am sure he does huge batches of this .. but there is money in it if you have the time

    • @bradprojects2827
      @bradprojects2827 Před 6 lety +1

      Penny's add up! Gold adds up faster!

    • @SnorrioK
      @SnorrioK Před 6 lety +2

      With more than 900.000 views, he certainly did not lose money on these :)

  • @AethalianBunnyHouse
    @AethalianBunnyHouse Před 7 lety

    SMASHING!

  • @BOMBOVA
    @BOMBOVA Před 8 lety

    through process you have done. i have processed the Cinch and Amphenol pins used in the circular male / female connectors. Some are rated at 30 micro inches of gold plate. " these ornamental, Decorative pins " i thought Not to be of such plating thickness.: i like your self am off, i routinely do get 0.25 of 1 percent by weight. some times, more, as pins can be 50 micro inches of gold plate, Circa 1965 / 78 . and even some colour coded ones, 75 micro inches of plating. Perhaps your throughness and good source of pins, gives you this good result. Admire the process, now let us find those gold pins. Cheers from Thomas GOLDBUYERca on the Forum

    • @sreetips
      @sreetips  Před 8 lety +1

      +Thomas Gx I thought these would in and out in an afternoon but they ended up taking me two days. Boy was I glad to see gold in solution, I thought I had done something wrong and made a mess.

    • @eslamsaeed2082
      @eslamsaeed2082 Před rokem

      يا صديقى اريد ان أعرف من أين أحصل على تلك الدبابيس، فى اى الأجهزة تكون موجودة ؟
      ساعدنى لكى استطيع الحصول عليها

  • @chemistryscuriosities
    @chemistryscuriosities Před 6 lety

    Invest in a glass distillation set or get a 1000ml retort and distill your own HNO3. KNO3 stump remover + H2SO4 drain cleaner and you will have a great supply of nitric acid.

    • @sreetips
      @sreetips  Před 6 lety

      I've got both and a distillation setup. I'll have to give this a try. Thank you.

  • @TehLexx
    @TehLexx Před 5 lety +1

    I think you had a base metal contamination in that dirty AR.

  • @anisahemad6968
    @anisahemad6968 Před 6 lety

    Hi sir how will the gold polish be done by recover the senate, please sir upload the video please

  • @amirtariq4894
    @amirtariq4894 Před 6 lety

    so smart sir

  • @brgfxii6986
    @brgfxii6986 Před 4 lety

    Nice bro👍

  • @VaibhavSharma-uh8us
    @VaibhavSharma-uh8us Před 4 lety

    very good

  • @-_-Sure.Not_
    @-_-Sure.Not_ Před 7 lety

    one of the best gold refining youtubers I reckon

  • @bentabetsofiane1926
    @bentabetsofiane1926 Před 6 lety +1

    tnx for video, i dont know why my aqua regia solution stay green even after percipating with smb , plz any solutions

    • @sreetips
      @sreetips  Před 6 lety +1

      After precipitation I always filter the gold powder out of the green liquid. Then, after rinsing the gold while it's still in the filter with a little hydrochloric acid, I dump the wet filter and the gold back into a clean beaker. I add some fresh hydrochloric acid, cover the beaker, and place it on low heat. Then I add just enough nitric acid to completely dissolve the gold a second time. The filter paper disintegrates and gets filtered out during the filtering process. After filtering I precipitate the gold a second time. This second refining really cleans the gold up nicely and gets rid of the green liquid completely.

  • @w8t2009
    @w8t2009 Před 7 lety

    one of the best videos on youtube

  • @Jouco
    @Jouco Před 2 lety

    I can't even pour myself a cup of coffee without spilling, attempting this would kill me in minutes.. Really enjoyable to watch though

  • @GothicTech
    @GothicTech Před 4 lety +2

    God damn the more I watch the more I want ot do such things :(

  • @dekonfrost7
    @dekonfrost7 Před 8 lety

    I actually have some coming up to do. I think I am going to make an anode. Of copper zinc lead, tin. I melted about a dozen down and hit them with an xfr gun. I should plate out the copper on the cathode and leave zinc mostly in solution. And drop gold and a little lead. Drop the lead and then filter out chlorauric the precipitate. The sulphur cell I just need to big of a cell to be effective I'll try and make a video and go from there. Thanks for all your help getting me started.

    • @sreetips
      @sreetips  Před 8 lety

      +dekonfrost7 Nice! I'd really like to see your setup. I've never recovered gold with electricity. It will be something new and I am looking forward to learning about it.

    • @dekonfrost7
      @dekonfrost7 Před 8 lety

      +sreetips yea I've never done it either. I guess it will be called called an industrial scale experiment.

    • @sreetips
      @sreetips  Před 8 lety

      +dekonfrost7 Where did you get the idea to do the recovery by electrlytic process?

    • @dekonfrost7
      @dekonfrost7 Před 8 lety

      +sreetips the fact is I have a metallurgical background. Refining is an extension of that skill I have lot to process. I just want the au th cu and zn are waste to me. But ill wind up with like 500 bucks worth of cu that way. So for like 100 bucks worth of chemicals I'm done. Also I don't really bother with nitric to make Aqua Regis I just use a salt. It's very cheap and works pretty good. But it's incredibly easy to overshoot your need of nitration. Simple and easy is electrolysis

    • @sreetips
      @sreetips  Před 8 lety

      +dekonfrost7 look forward to seeing your process.

  • @portugalsuica910
    @portugalsuica910 Před 6 lety +1

    good

  • @raymondreyes8046
    @raymondreyes8046 Před 3 lety

    Ok so I messed up I guess. I put a bunch of junk into nitric acid after washing it of course in HCL and rinsing 4 times. It's pins, rc jacks with the plastic rubber still on, a few pinless green cpus, CPU sockets etc.... It's now warming in nitric acid and distilled water. But is very brown sludgy stuff. So it's this coloring b cuz I mixed magnetic and non magnetic? Ugh plz help

  • @icelostboy
    @icelostboy Před 7 lety

    Thank you for your vids i always enjoy. I do have a question if you have time to answer. Do you use reverse electroplating on the magnetic pins or the same acid way? Most of the pins i have saved off p.c. boards are magnetic and i cant seem to find anything but reverse electroplating with sulfuric acid. Any suggestions? Thanks for any help and the greats info and vids .

    • @sreetips
      @sreetips  Před 7 lety

      Reverse plating in a sulfuric acid cell is the best way to go with gold plated items. Yes, magnetic pins will reverse plate quickly in the sulfuric acid stripping cell. As you can see in this video, it took a long time to get the base metals to dissolve. The mil-spec pins I used in this video would have de-plated in just minutes, instead of taking hours to dissolve base metals like it did in the video.

    • @icelostboy
      @icelostboy Před 7 lety

      sreetips Thank you very much for the info. I didn't realize that's why it took longer in this vid. Thank you again and great job on your videos.

  • @ssbtc21rjp
    @ssbtc21rjp Před 6 lety

    Helo sir can we do this for earn money also or cost of experiment is equalant to cost of gold ?

  • @tomaszbebenek2303
    @tomaszbebenek2303 Před 5 lety

    Hello. what do you explore solution in 13.00 min films

  • @helderfreitas6760
    @helderfreitas6760 Před 8 lety

    hello again, can you explain better the step with the silver testing solution? I didn´t understand it very well.thank you

    • @sreetips
      @sreetips  Před 8 lety +1

      +Helder Freitas I can't remember if I explained this yet to not, I did a test with silver testing solution and the color of the solution turned green indicating brass (alloy of zinc and copper). Blue would have been copper, plus I visually inspected and the metal under the gold, where I filed, was a gold color. Copper is pink looking, brass is gold looking. The visual inspection, lack of magnetic properties, plus the silver testing solution turning green (instead of blue) led me to conclude that the base metal was brass - a metal that dissolves easily in hot dilute nitric acid.

  • @thankgodsylvesteromoigui5921

    I like your video but will this method works for full plated gold pins?

    • @sreetips
      @sreetips  Před 7 lety +2

      I did this video to demonstrate a way to get the gold using dilute nitric to remove most of the base metals. But it took much more time and acid than I expected. The best way to process gold plated items is in a sulfuric acid stripping cell. I would not recommend the method used in this video, especially for someone who is a beginner.

  • @raymondreyes9710
    @raymondreyes9710 Před 8 lety

    im going to construct a sulphuric acid stripping cell, with stainless steel and copper mesh. does it matter how big the stainless steel sheet has to be?

    • @sreetips
      @sreetips  Před 8 lety

      +Raymond Reyes - I've never used stainless so I don't have any experience to offer. I used a lead cathode.

  • @Bixodelasnbkazul
    @Bixodelasnbkazul Před 7 lety +6

    no puedo creer que estuve 20 minutos viendo como transformaban basura en oro. youtube usted es diabolico.

    • @UlisesDamianOrtega
      @UlisesDamianOrtega Před 7 lety

      Una perdida de tiempo, con esa bolito de oro, ni si quiera cubre los gastos de la cantidad de quimicos que utilizo

    • @ramonta3
      @ramonta3 Před 6 lety

      cuanto le pagarán por esa bola, cuanto gastó y cuanto le queda de ganancia,ahh y las 10 horas o mas de tiempo,me pregunto compensará hacerlo

    • @jaime8184
      @jaime8184 Před 6 lety

      Y despues que hace con los residuos???

  • @MrIdasam
    @MrIdasam Před 7 lety

    Very cool to watch. But how much money did you spend in chemicals and how much time did it take to recover a gold BB?

    • @sreetips
      @sreetips  Před 7 lety +1

      I refine karat gold as a hobby. I've got all the items and chemicals required to do this experiment. So I am all set up to do this kind of work. But it is very labor intensive, as you can see by the video. Recovering gold in this way is something I don't do very often. But it is a way to get some pure gold.

  • @lifestylemodificatio
    @lifestylemodificatio Před 5 lety

    That's what I call mining

  • @coldbluefire
    @coldbluefire Před 8 lety +1

    Why not just skip dissolving the base metal and use Aqua Regia to strip the pins of gold? Seems like it would minimize lost gold and save a bunch on chemicals.

    • @sreetips
      @sreetips  Před 8 lety

      +coldbluefire because the Aqua Regia would dissolve the base metals with the gold and cause problems. It's best to remove as much of the base metals as possible first. Actually the best way to recover the gold is a sulfuric acid stripping cell.

    • @coldbluefire
      @coldbluefire Před 8 lety

      +sreetips Ah the power of Aqua Regia...I have much to learn, thx!

  • @ambalapetlover7904
    @ambalapetlover7904 Před 4 lety

    I work on this pins,,after nitric treatment,,,lot of gold foils i get,,,but after ar treatment,,,there is not much gold powder,,,,i also melt some gold foils direcly,,,without ar treatment,,,then i get a small pice of plladinum,,,not gold,,,what is wrong with me,,,plz help

  • @jamiebridges8668
    @jamiebridges8668 Před 8 lety

    what do you do to the other pins that have tin or zinc or etc i used computer connector pins and have a white sediment at the bottom with my gold and am not sure what to do now

    • @sreetips
      @sreetips  Před 8 lety +1

      The sediment is probably a salt. Just let it settle completely for at least 24 hours, or until the liquid is crystal clear. It may take longer than 24 hours. Then use a piece of flexible PVC tubing and siphon off the clear liquid and leave the settled salts at the bottom. Gold plated pins are best deplated in a sulfuric acid stripping cell.

  • @PITBULL26398
    @PITBULL26398 Před 6 lety

    That's why the gold it's so expensive

  • @RoboticP002
    @RoboticP002 Před 8 lety

    at a quick glance I thought it was bullets lol

  • @warmfreeze
    @warmfreeze Před 8 lety +2

    not bad... gold is around $40/ gram US right now.. so you pretty much got your money's worth...

    • @Trillion89
      @Trillion89 Před 8 lety +1

      500ml of Nitric Acid is around $35. Not to mention the hours of energy spend in labour, heating and other chemicals. Am I missing something?

    • @lukaszmozer1
      @lukaszmozer1 Před 8 lety

      yeah i rather mine gold with my bare hands

    • @emmanuelonofrei3556
      @emmanuelonofrei3556 Před 8 lety +1

      none left buddy, the most potent gold mines literally mine several tons of dirt, and then refine it.

  • @kommidishivakrishnareddy

    Good messages

  • @wahidali7586
    @wahidali7586 Před 2 lety

    I just started recovery from computer scrape. That is very difficult processing to sort IC chips. Mlcc capacitors and other components and also gold plated pins. Too much time to take to sort all the components. Please tell me easy way if we do another procedure

    • @sreetips
      @sreetips  Před 2 lety

      There is no “easy” way to get pure gold. That’s why it’s so darn expensive.

  • @gb69ish
    @gb69ish Před 8 lety

    Could you use urea instead of sulfamic acid to neutralise the nitric acid?

    • @sreetips
      @sreetips  Před 8 lety +3

      There are those who have more experience than I who say that urea won't work to kill excess nitric, but I've used it in the past and it seems to work ok.

  • @davidlee1719
    @davidlee1719 Před 8 lety

    Question: I have some Gold plated pins or appear to be gold and test with a basic gold test solution to be gold. They have solder on them from the circuit board. Would the best method to remove JUST the solder be a soak in JUST HCl for a while to remove the solder and get just clean pins for processing?

    • @sreetips
      @sreetips  Před 8 lety +1

      I think that will work. But you may have to scrape the solder off once the HCl loosens it up.

    • @saidbotrogi1035
      @saidbotrogi1035 Před 7 lety +2

      David Lee

  • @DonaldMelton
    @DonaldMelton Před 7 lety +7

    1000 grams of pins , 7.4 grams of gold = $290.00 ( 10/23/2016) not to shabby .

    • @Hobby_Electric
      @Hobby_Electric Před 6 lety +2

      Add worktine and Chemicals prices...

    • @dylandownright8844
      @dylandownright8844 Před 6 lety +4

      Add in cost of buying the pins and everything else, he might've broke even, but the educational purposes are priceless

  • @calebbennington7322
    @calebbennington7322 Před 8 lety

    One quick question do you think it might be more cost effective to process these by reverse electroplating like in you earlier videos? Is that possible with the thicker gold plated pins?

    • @sreetips
      @sreetips  Před 8 lety

      +Caleb Bennington yes, these pins should deplate in the sulfuric acid stripping cell.

    • @eugenemendoza6337
      @eugenemendoza6337 Před rokem

      @@sreetips this process on your video will work on both magnetic and non-magnetic pins?

  • @redporsche928s
    @redporsche928s Před 3 lety

    why does mine stay green and not look blue

  • @mr.raj_esh
    @mr.raj_esh Před 6 lety

    Reason why I hate chemistry 😂😂

  • @alanhuntley347
    @alanhuntley347 Před 3 lety

    I have 65 pounds + of these pins but some (very few) are the solder cup type and have solder on them. Would it be possible to leave them in the batch for processing or should I remove them because of the tin/lead?

    • @grzlbr
      @grzlbr Před 3 měsíci

      I'll take them, but if not just some hot muriatic acid will work

  • @themanthelegend7048
    @themanthelegend7048 Před 5 lety

    Those screws and nuts were probably half your original weight.

  • @raymondcote6669
    @raymondcote6669 Před 4 lety

    Gold from pins you add 1 spoon if SMB video prior to this one you added 8 spoons of smb. What is the criteria for quantity? Both beakers were not that different. Rules?

    • @sreetips
      @sreetips  Před 4 lety +1

      I just added SMB until I thought there was no more gold in solution. When first starting out add a spoon of SMB then test with stannous. Add another spoon, test with stannous. Repeat until the stannous test is negative. If excess nitric is present (common for beginners) it will take much more SMB until all the excess nitric gets consumed. In time you learn how to add just enough nitric to just dissolve the gold. Then the amount of SMB required will be much less.

  • @vedantkale1163
    @vedantkale1163 Před 7 lety

    Can we also do this process for pentium 4 processors? Because I happen to get quite a lot of base metal(Cu) in my final product.

    • @sreetips
      @sreetips  Před 7 lety

      I don't know because I've never tried to process them. I chose the Pentium Pro because of its relative high yield compared to other processors. However, I normally don't process this type of scrap because the yields are just too low. I only did it here to make the video.

  • @mohsenaghdam3136
    @mohsenaghdam3136 Před 2 lety

    Sir what’s the filter number you used for filtration, can you learn us how do you fold filter paper

    • @sreetips
      @sreetips  Před 2 lety

      I’ll demonstrate in my next video: Stock Pot Three - in progress right now

  • @thangtran3693
    @thangtran3693 Před 7 lety

    dear sir, i wantto learn, but i am not sure about chemical. can you teach for me?

  • @cditzler6313
    @cditzler6313 Před 4 lety

    I know this is like 4 yrs later but if one would grind up the pins would the reaction take less nitric to produce better or quicker results and by any chance you can be hired as consultant for future simply because i only trust 2 ppl I can tell so far no offense to others you are one of them cody being the other

    • @sreetips
      @sreetips  Před 4 lety

      Chopping the pins up would expose greater surface area and speed the reaction.

  • @jillphillips8117
    @jillphillips8117 Před 2 lety

    There is actually easier and safer ways to do this. Still a very good video.

  • @vedantkale1163
    @vedantkale1163 Před 7 lety

    How do you understand that the solution is saturated with base metals?

    • @sreetips
      @sreetips  Před 7 lety

      Base metals, such as copper or brass (brass is an alloy of copper and zinc), are under the coating of gold on these pins. Nitric acid will dissolve these base metals, leaving just the gold shells behind (because nitric acid, by itself, will not dissolve the gold). This is how I know that the solution is saturated with base metals.

  • @lemuria69
    @lemuria69 Před 6 lety

    Hi sreetips, please what should I do or what method should I use to separate the gold from the white paste or residue that is formed when processing with nitric acid? It is impossible to filter it. Thank you.

    • @sreetips
      @sreetips  Před 6 lety +1

      White paste? Tin metal dissolved in nitric acid will form metastannic acid, or tin paste. It will gum up a filter so that no liquid will flow through the filter. Sulfuric acid will dissolve metastannic acid, but it doesn't do it very well.

    • @lemuria69
      @lemuria69 Před 6 lety

      sreetips OK thanks

  • @victorgigante5374
    @victorgigante5374 Před 7 lety

    I guess that's why they call it "red fuming" nitric acid?

  • @badboyere100
    @badboyere100 Před 4 lety

    Hi can you give me some information on how to refine silver with items that can be purchased over the counter in the UK thanks

    • @sreetips
      @sreetips  Před 4 lety

      I visited Portsmouth back in 1985. Other than that I don’t know what you have there.

    • @badboyere100
      @badboyere100 Před 4 lety

      How crazy I love in Portsmouth. Not to worry thanks any way

    • @badboyere100
      @badboyere100 Před 4 lety

      Live*

  • @tfoster32
    @tfoster32 Před 6 lety

    How do you get the empurities out of jewlry, that are not totally gold?

    • @sreetips
      @sreetips  Před 6 lety

      Terry, please se my video on how to refine scrap gold jewelry

  • @kt-limbo
    @kt-limbo Před 7 lety

    working on airplane throwing and changing daily yellow pins so am sure time it's aircraft parts must be more gold on it. but the operation is to complicated with all this kind of acid. I have nitric acid can I just let pins on nitric for days and see ?

    • @sreetips
      @sreetips  Před 7 lety +2

      You'll probably end up with a mess and recover no gold. In the video, I used nitric to dissolve the brass so I could recover the gold foils For refining. I did it for demonstration only. This is not the best way to recover gold from gold plated items. The best way is to use a sulfuric acid stripping cell to reverse-plate the gold off the gold plated items. I made a video that shows how to construct and operate a sulfuric acid stripping cell.

    • @kt-limbo
      @kt-limbo Před 7 lety

      okay I will go slowly.

  • @littlemammalsclub5988
    @littlemammalsclub5988 Před 4 lety

    Why you use only the brass pins. What will happen with the other?

    • @sreetips
      @sreetips  Před 4 lety +1

      Brass, an alloy of copper and zinc, is highly soluble in nitric acid. Iron and steel cause problems because it don't dissolve as easily in nitric. Also, when the gold is dissolved in aqua regia, if any metallic iron is present, the gold will tend to cement out on the iron. The iron based gold plated pins are best processed in a sulfuric acid stripping cell.

  • @nagaewaste
    @nagaewaste Před 4 lety

    What paper are you using in stannous chloride

    • @sreetips
      @sreetips  Před 4 lety +1

      Pieces of filter paper cut into strips with scissors.

  • @grcoon
    @grcoon Před 8 lety +2

    Do you smelt it all down? What was your final yield? Did you sell it?

    • @sreetips
      @sreetips  Před 8 lety +4

      +The Great one Smelting is a term used to describe extracting metals from ore. I have never done any smelting. I recovered the gold foils from the mil spec pins using hot dilute nitric acid to dissolve the base metals. Then I refined the gold to 24k using Aqua Regia to dissolve the gold foils, filtered out solids, then precipitated the pure gold from the solution with sodium metabisulfite.

  • @esmailmohamed6919
    @esmailmohamed6919 Před 6 lety

    Good 🌷

  • @juretoljan5800
    @juretoljan5800 Před 2 lety

    Hi everyone. when lowering gold from aqua regia with SMB, it is lowered with gold and lead/tin. (gray white precipitate) how to get rid of it? help please

    • @sreetips
      @sreetips  Před 2 lety

      I’d say use ferrous sulfate. It only drop the gold.

  • @the-iter8
    @the-iter8 Před 7 lety

    come one u could dissolve that gold earlier before dissolving base metals, lefting the base metals aside

    • @sreetips
      @sreetips  Před 7 lety +1

      That's not so. If you try to dissolve the gold first, before removing the base metals, then there will be several problems. First, as the gold dissolves, the base metals ( in accordance with the reactivity series of metals ) will cement out onto the undissolved base metals just as fast as it (the gold) dissolves. The gold will NOT stay in solution until after all the base metals go into solution. So the best coarse is to dissolve only the base metals first with dilute nitric acid. Nitric acid will not dissolve gold. Second, the hydrochloric acid in the aqua regia will form salts with the base metals and create a very dirty solution that is hard to filter and hard to recover the gold from. All that said, the best way to recover the gold from ANY gold plated material is through a sulfuric acid stripping cell.

  • @569139
    @569139 Před 5 lety

    What is the best process for Gold recovery from RAM chips? Will the process from this video be used for Gold plated connectors from motherboards and such? Many Thx, keep up making these great and informative videos..

    • @sreetips
      @sreetips  Před 5 lety +1

      RAM chips is something that I've never done. Gold plated connectors would probably best be processed in a sufuric acid stripping cell, but only if they are gold over metal. Gold on a fiber board material would not conduct electricity so fiber board stuff won't work in a sulfuric acid stripping cell. Gold on fiber board must be processed with acid peroxide. I only did these pins as an experiment to see if it would work. It took much time and acid to get all the base metals out. These would have deplated much quicker in a sulfuric acid stripping cell.

    • @569139
      @569139 Před 5 lety

      Many Thx @@sreetips

  • @gaggiouy
    @gaggiouy Před 8 lety

    hello ... a question .. where you buy porcelain square containers? Thanks for uploading these videos ..

    • @sreetips
      @sreetips  Před 8 lety

      +gaggiouy I don't know, you might try ebay

    • @gaggiouy
      @gaggiouy Před 8 lety

      which marks are the sources?

    • @sreetips
      @sreetips  Před 8 lety

      +gaggiouy I don't quite understand your question? Are you asking about markings on the pins? Thank you for your interest.

  • @chemistryscuriosities
    @chemistryscuriosities Před 6 lety

    It will be above 85% concentration so you won't need as much