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Offlinemakaveli8x8
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anyone know how to electroplate?
    #21846717 - 06/23/15 04:43 PM (8 years, 7 months ago)

Im trying to tin-zinc plate nuts and bolts.  Starting out im trying to just tin plate and its not going very well.  I had tin on the positive side, and a copper wire on the negative, nothing happened, just some bubbles on the tin.  And at the surface just a line of green on the wire, guessing copper oxidized there.

So then i put tin on both the positive and negative to see what would happen, i noticed some clear/white crystles formed on the positive lead, so i thought maybe that was tin falling out of suspension and i thought ok ill try the copper wire again.  same thing happened as before.

So then i did the tin/tin again overnight to see what would happen, i wake up and the positive lead is blackish that was under electrolyte, the other lead looks like normal..... and this time i see no crystles anywhere.

anyone know wtf is going on?  The fact that there are bubbles on the positive lead means tin must be leaving it right?  BUT, if tin was leaving it, it should be shiney from newly exposed metal, instead its BLACK.  From what ive read, if i have my voltage to high, it can cause burning, which is what this looks like, BUT....this is the positive lead......it doesnt make sense, if anything was going to be burned black it should be the negative

im wondering if maybe my electrolyte isn't strong enough to pull the tin off, im using vinager and peroxide with some salt/sugar very small amount.  but im a little worried to use anything else for fear of killing myself with toxic fumes or something


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We were sent to hell for eternity :hellfire: Ø:omgawesome:h®
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Offlinekoods
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Re: anyone know how to electroplate? [Re: makaveli8x8]
    #21846819 - 06/23/15 05:18 PM (8 years, 7 months ago)

Your electrolyte had to be a salt if the metal you want to plate. If you want to plate tin then the electrolyte needs to be a tin salt.


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NotSheekle said
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Offlinekoods
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Re: anyone know how to electroplate? [Re: koods]
    #21846835 - 06/23/15 05:22 PM (8 years, 7 months ago)

If the volrage is too high you generate hydrogen as well as the metal at the cathode and the metal won't stick to the surface. Different metals have different overvoltages. The more reactive metals have a higher overvoltage. I don't think you can overvoltage zinc.


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NotSheekle said
“if I believed she was 16 I would become unattracted to her”


Edited by koods (06/23/15 05:34 PM)


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Offlinekoods
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Re: anyone know how to electroplate? [Re: koods]
    #21846846 - 06/23/15 05:25 PM (8 years, 7 months ago)

Your tin anode is black because you are generating chlorine gas at it by using table salt,


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NotSheekle said
“if I believed she was 16 I would become unattracted to her”


Edited by koods (06/23/15 05:34 PM)


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Offlinekoods
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Re: anyone know how to electroplate? [Re: koods]
    #21846874 - 06/23/15 05:31 PM (8 years, 7 months ago)

Your best electrolyte would be SnSO4.


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NotSheekle said
“if I believed she was 16 I would become unattracted to her”


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Offlinemakaveli8x8
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Re: anyone know how to electroplate? [Re: koods]
    #21846975 - 06/23/15 05:59 PM (8 years, 7 months ago)

so in otherwords i was creating a toxic gas anyway, awesome.  i thought it smelled a little funny but i thought it was just the tin smelling that way.

As for the electrolyte being a salt of tin, i thought i was creating it by letting the tin sit in the acid, and also when i had the tin on positive and negative?  thats what people do with copper, i thought it worked the same way with tin?

is there a way to make SnSO4?


--------------------
We were sent to hell for eternity :hellfire: Ø:omgawesome:h®
We play on earth to pass the time :foreheadslap:

Over-population the root of all Evil-brings the Elites Closer to the gates.


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Offlinekoods
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Re: anyone know how to electroplate? [Re: makaveli8x8]
    #21847018 - 06/23/15 06:10 PM (8 years, 7 months ago)

You are creating a tin salt when you do that but how do you expect the tin ions to find their way to the other anode? You need tin ions already in the solution.

Same thing with copper. You need a copper electrolyte to plate copper


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NotSheekle said
“if I believed she was 16 I would become unattracted to her”


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Re: anyone know how to electroplate? [Re: koods]
    #21847032 - 06/23/15 06:14 PM (8 years, 7 months ago)

Tin doesn't react well with acids. It would be hard to make snso4


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NotSheekle said
“if I believed she was 16 I would become unattracted to her”


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Offlinemakaveli8x8
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Re: anyone know how to electroplate? [Re: koods]
    #21847054 - 06/23/15 06:22 PM (8 years, 7 months ago)

you say the same thing with copper but then how are these people getting it to work then?  wouldn't they be having the same problem with the copper getting it to find its way to the other anode?

http://www.instructables.com/id/High-Quality-Copper-Plating/

thats the guide i was following, they don't add any metal salts to the water, they are pulling it from the metal somehow


it seems like this tin is going to be a pain in the ass, only place to find that snso4 is all the way in europe lol eastwood has a kit but its $80 dam dollars.....


is just zinc my next best option for rust protection on nuts and bolts?  will the copper guide work with zinc pennys or will i have the same problem?


--------------------
We were sent to hell for eternity :hellfire: Ø:omgawesome:h®
We play on earth to pass the time :foreheadslap:

Over-population the root of all Evil-brings the Elites Closer to the gates.


Edited by makaveli8x8 (06/23/15 06:29 PM)


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Offlinemakaveli8x8
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Re: anyone know how to electroplate? [Re: makaveli8x8]
    #21847075 - 06/23/15 06:28 PM (8 years, 7 months ago)

it looks like the acid i need to do it might be sulphuric acid instead of vinager?  if i soak it in that, would i create the electrolyte needed to do it?  looks like some drain cleaners use it, and according to wiki its a watched chemical:confused:


--------------------
We were sent to hell for eternity :hellfire: Ø:omgawesome:h®
We play on earth to pass the time :foreheadslap:

Over-population the root of all Evil-brings the Elites Closer to the gates.


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Offlinekoods
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Re: anyone know how to electroplate? [Re: makaveli8x8]
    #21847089 - 06/23/15 06:33 PM (8 years, 7 months ago)

You can get 35% sulfuric acid at Home Depot in a box labelled battery acid.


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NotSheekle said
“if I believed she was 16 I would become unattracted to her”


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Re: anyone know how to electroplate? [Re: koods]
    #21847101 - 06/23/15 06:35 PM (8 years, 7 months ago)

But tin doesn't really react with sulfuric acid


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NotSheekle said
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Offlinemakaveli8x8
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Re: anyone know how to electroplate? [Re: koods]
    #21847111 - 06/23/15 06:37 PM (8 years, 7 months ago)

and then i should be good to go?  just drop the tin in it, let it soak a while, then plate?  and i won't kill myself or anything?

will it work with zinc as well?

my idea to tin-zinc was to put 2 pieces of metal on the postive lead, a piece of tin(95 tin/5 antimony solder) and a piece of zinc (penny) and the mixture would "tin-zinc" my item, sound about right?


--------------------
We were sent to hell for eternity :hellfire: Ø:omgawesome:h®
We play on earth to pass the time :foreheadslap:

Over-population the root of all Evil-brings the Elites Closer to the gates.


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Offlinemakaveli8x8
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Re: anyone know how to electroplate? [Re: makaveli8x8]
    #21847114 - 06/23/15 06:38 PM (8 years, 7 months ago)

oh :frown:


--------------------
We were sent to hell for eternity :hellfire: Ø:omgawesome:h®
We play on earth to pass the time :foreheadslap:

Over-population the root of all Evil-brings the Elites Closer to the gates.


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Offlinekoods
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Re: anyone know how to electroplate? [Re: makaveli8x8]
    #21847182 - 06/23/15 06:55 PM (8 years, 7 months ago)

Quote:

makaveli8x8 said:
you say the same thing with copper but then how are these people getting it to work then?  wouldn't they be having the same problem with the copper getting it to find its way to the other anode?

http://www.instructables.com/id/High-Quality-Copper-Plating/

thats the guide i was following, they don't add any metal salts to the water, they are pulling it from the metal somehow


it seems like this tin is going to be a pain in the ass, only place to find that snso4 is all the way in europe lol eastwood has a kit but its $80 dam dollars.....


is just zinc my next best option for rust protection on nuts and bolts?  will the copper guide work with zinc pennys or will i have the same problem?




Zinc plating is usually done by dunking the object being plated in molten zinc... Aka galvanizing.


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NotSheekle said
“if I believed she was 16 I would become unattracted to her”


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Re: anyone know how to electroplate? [Re: koods]
    #21847189 - 06/23/15 06:56 PM (8 years, 7 months ago)

You can't plate two metals at the same time. In a mixture of metal ions, one will plate preferentially before the other.

This is how impure copper ingots are purified using electrolysis. The copper plates preferentially and the other more reactive metals stay in solution.


--------------------
NotSheekle said
“if I believed she was 16 I would become unattracted to her”


Edited by koods (06/23/15 07:00 PM)


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Offlinekoods
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Re: anyone know how to electroplate? [Re: koods]
    #21847218 - 06/23/15 07:04 PM (8 years, 7 months ago)



Video of me making zinc dust using electrolysis of a zncl2 solution. Zinc electrodes do not generate chlorine gas since the metal is so reactive it immediately forms more zncl2.


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NotSheekle said
“if I believed she was 16 I would become unattracted to her”


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Offlinemakaveli8x8
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Re: anyone know how to electroplate? [Re: koods]
    #21847455 - 06/23/15 07:54 PM (8 years, 7 months ago)

if i dunked a bolt into molten zinc or tin, it would fill all my threads up tho wouldn't it?

it looks like tin will react very slowly with surfuric acid, so if i just let it soak for a couple weeks then i would have my metal salt correct? 

heat also speeds things up too, if i boiled vinegar with tin in it for a while would that work?


im just trying to think of the most practical way of doing this, whats the best way to rust protect my nuts?

copper won't work, nickle is iffy i can't remember offhand but i seem to have it stuck in my head that there are some downfalls to using it for this purpose.

whats my best safest option, preferably without having to order stuff?


--------------------
We were sent to hell for eternity :hellfire: Ø:omgawesome:h®
We play on earth to pass the time :foreheadslap:

Over-population the root of all Evil-brings the Elites Closer to the gates.


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Offlinekoods
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Re: anyone know how to electroplate? [Re: makaveli8x8]
    #21847481 - 06/23/15 07:59 PM (8 years, 7 months ago)

You don't have to coat steel with zinc to protect it from rusting. As long as there is zinc in contact with the steel and in contact with the water, the steel will not rust. The zinc becomes a sacrificial anode. This works with aluminum and magnesium as well as zinc.

Steel hulled ships have a strip of zinc or magnesium strapped to the side of the ship and this protects the entire ship from rusting.


--------------------
NotSheekle said
“if I believed she was 16 I would become unattracted to her”


Edited by koods (06/23/15 08:02 PM)


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Offlinekoods
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Re: anyone know how to electroplate? [Re: koods]
    #21847529 - 06/23/15 08:07 PM (8 years, 7 months ago)

Why not just buy galvanized nuts and bolts?


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NotSheekle said
“if I believed she was 16 I would become unattracted to her”


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