Metal Refining & Recovery, 18: Lead Free Solder

100 thoughts on “Metal Refining & Recovery, 18: Lead Free Solder

  1. Cody are you right handed ?
    Because when i saw you writting down your calculus i spot that u write like me with my left hand but i'm right handed ahah

  2. another way to get the solder to electrolyzing better is to cast it into an ingot first. Coils are notorious for not fully electrolyzing!

  3. A thought perhaps, but why not combine all the solder into an ingot of some sort before refining electrochemically? The amount of tin would remain the same but there'd be less bits left over, using a wider/deeper container would likely reduce the chances of shorting out as well.

  4. Hydrochloric is the scientific term. The other term is its name like water is h20… but its actually hydrogen and oxygen. 2-1

  5. Nitpick, when rounding floating numbers to fixed count, you should +1 to next digit if it's greater or equal to 5. For example, 5.45 ~= 5.5, 4.55555 ~= 4.5556 ~= 4.6 ~= 5.

  6. What sort of concentrations of hydrogen peroxide do you use? In England, we're terribly limited as to what concentrations amateurs are allowed to have.

  7. I have the same furnace and the aluminum contact blocks they use melt when you use them. I replaced them with steel bolts and its working fine so far.

  8. CODDDYYY its way late but I always binge watch your videos at work, (it’s a pretty lenient workplace) and I was curious, you said the crystals would short it out, how does that happen?

  9. Cody always tell people to not put molten tin in water to cool it It will explode and send hot metal everywhere

  10. 14:40 They say that highly intelligent people have terribly legible writing. You back up that theory my friend. Love all your videos and love you man, you're an inspiration! Thank you 🙂

  11. I guess your silver is mostly in the knob of "tin" you made… By uncontrolled electrolysis you force the formation of silver chloride. And although it does not dissolve well in water some goes into solution. Then during electrode the most noble metal in solution plates at the cathode first. This is where the silver went! ;(

  12. Cody! Record that reaction from start to end and post it as a separate video. Watching at 2x speed on YouTube and it was awesome. Looked like magma solidifying

  13. not followed up on this (since it has been nearly 2 years since this was put out) but I am guessing if you had used hydrogen peroxide, and a chloro-alky cell (spelling?) ie a tank with water, and peroxide, and one with salt water, putting the system together so that the chlorine would be drawn from the saltwater via a tube of water and capped on the ends with a filter to avoid the salt spreading out through the both tanks of water, you should have been able to use the chlorine from the table salt to break down your tin, till it was gone, and probably the silver as well as everything else for a buck or two of table salt, with plenty to spare, and been left with sodium hydroxide mostly in the tank that the sodium is attracted toward, then it would just be a matter of making supersaturated solution of water and tin/copper/silver chloride, and then let it cool off letting the silver precipatate out first as a chloride salt, filter, heat again till it is super saturated, and repeat to do crystal fractionalization. to sort the various salts, and finish from there to get a much purer reaction and capture much more of your substances. also the stannous chloride would be nice to see you do a video on how to make that and glass into conductive transparent glass. 🙂 (yes I know with out the iridium it wont be as tough, I just like the idea of transparent conductors since this might improve energy collection from photovoltaic cells 🙂

  14. Why do Americans call it "Sodder"? There's an "L" in there, you know, it's written on the packet. From the Latin solidaturam .

  15. Cody can you try refining silver solder used by HVAC techs? I'm one of those guys and we use solder that's supposedly 15%. The top rated sticks are at least.

  16. ………hate to see waste, that was good solder……..but in reading the comments I saw mention of the claimed silver content is not as claimed…Any reason for not using a carbon electrode instead of a stainless steel spoon?… Always some variation on the weights of spools but never over it's always under. …I remember that our boxes of matches in 1970s claimed average content of 50 per box but when I counted many of them I found hardly ever more than 47 yet I never came across a count of 53, 52,51,50,49. Today these match boxes only claim 46 matches per box.

  17. @Cody's Lab, have you ever done a follow up with the xray detector?

    Have you tried real silver solder (my experience in the plumbing and HVAC trades has taught me that common solder, like you used, is far different then what I was taught is silver solder. "Real" silver solder is used by the HVAC guys who connect AC line sets and such. It has a much higher melting temp then the types used for standard plumbing, and is also supposed to be stronger then the copper it connects!)?

    And lastly, could you help me to understand/make a video on: How I can process my own scrap- As a plumber/HVAC mechanic, I come across a lot of copper, brass, and of course solder joints. The scrap value is down right now, I'm willing to experiment to refine some of the metals I have (Cu, Zn in the brass, Sn, etc.). Thanks again Cody, love your work in educating your fellow man:)

  18. I didn't know, I haven't been wearing proper PPE in Math class… Thanks for the great videos as always. 🙂 I know this is an older one, and you'll never see this, but it's been a heck of a week and I'm binge watching your videos to relax.

  19. When you add water to your demonstrations, do you use filtered, distilled, deionized, or just tap water? Most tap water has a lot of minerals dissolved in it, right?

  20. Remember back in chemistry class where the one kid who never paid attention would start doing the maths without their gloves on and the teacher would scream at them for being dangerous

  21. hi Cody. thanks for the video.
    my name is Alexandre. and I am from Brazil.
    I need to ask for help.
    If I put a motherboards or a power board from computers in hcl the solder will disolve and the tin, lead and some silver goes to the soluction. How can I recover the tin and lead from the soluction.??

  22. You may make a profit if you convert to silver nitrate. 42.5 g of 99.9999 makes 96g of silver nitrate so $40 to $280 haha

  23. This refining scheme is crap! Most of the metals plated through to your "tin". You drove the electrolysis so hard that everything plated through. Either do slow electrolysis (pain because tin shorts cell), or dissolve everything in nitric acid, then precipitate out the silver with HCl. You could also use "poor man's aqua regia" (HCl and a nitrate salt) to dissolve the tin and copper faster. (This is the crude scheme used to make nitric acid). Once you get the silver chloride, add this to NaOH solution until it turns black, then add sugar a little at a time as it heats up. Silver powder results which you can melt with a torch.
    In order for electrolysis to work, you need one metal in the majority, along with a parallel-plate geometry and careful control of the voltage to achieve separation. You would have been better off using the HCl along with some peroxide to push things along, and rolled the solder thin.

  24. I will play you 10 thousand dollars a week be my chemistry teacher.
    Plus I will pay for any of the gold, silver or mercury in the practical lessons.

  25. The silver doesn't add much to it in any case. Badger solder that uses antimony is just as good if not better.

  26. They always lie on the content. I noticed the silver solder you use in HVAC you have to use more heat to solder the copper together than before.

  27. I wish i could do things like this…

    Buttt nooooo, i am a mucisian, chemistry shouldn't be one of my intrests!
    Well i fucking love chemestry, physics, math. Those are the things that can make me understand how the universe works, not mozzart!

  28. I have did electrolysis of lead as both Anode and Cathode in Nacl solutions what was i get a Cloudy Solutions what was that ?

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