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Forum index » Science and Technology » Chem » Electrochem
Zinc electroplating once and for all...Help please.
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beavith
science forum beginner


Joined: 19 May 2005
Posts: 23

PostPosted: Tue Jun 06, 2006 2:52 pm    Post subject: Re: Zinc electroplating once and for all...Help please. Reply with quote

ol3@webtv.net (Oscar Lanzi III) wrote in news:20128-447E4401-916@storefull-
3252.bay.webtv.net:

Quote:
Steel strip electrogalvanizers tend to prefer something that's not
basic. Try acidic, as in dilute sulfuric acid with zinc sulfate.
Typically you have something like 2 M total sulfate, which is nominally
ZnSO4 + H2SO4. Once you factor in tying up protons (weakly) as
bisulfate ions, you're talking about a pH of 1-2.

--OL


Hola OL3! Go Boilers!


FWIW, the zinc plate from a straight sulfate bath like Oscar mentioned is
pretty powdery gray.

it may be worthwhile to just dip your hardware in a molten bath of zinc.

if you want "nice and shiny," you'll need something like a commercial bath
based on chloride, or god forbid, cyanide, with brightener(s).


in any of the three cases, this is not for the hobbyist, especially the
cyanide bath.

go to your yellow pages and look up "plating" or "metal plating". the
days of bronzing your own baby shoes is long past. leave it to the
experts.
>
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Oscar Lanzi III
science forum Guru Wannabe


Joined: 30 Apr 2005
Posts: 176

PostPosted: Thu Jun 01, 2006 1:33 am    Post subject: Re: Zinc electroplating once and for all...Help please. Reply with quote

Steel strip electrogalvanizers tend to prefer something that's not
basic. Try acidic, as in dilute sulfuric acid with zinc sulfate.
Typically you have something like 2 M total sulfate, which is nominally
ZnSO4 + H2SO4. Once you factor in tying up protons (weakly) as
bisulfate ions, you're talking about a pH of 1-2.

--OL
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lmcgill2@uiuc.edu
science forum beginner


Joined: 31 May 2006
Posts: 5

PostPosted: Wed May 31, 2006 7:44 pm    Post subject: Zinc electroplating once and for all...Help please. Reply with quote

Hello all- I know this topic has been discussed before, but I still
don't think anyone has provided a good/great answer. I am wondering if
anyone out there has any suggestions on a good Zinc electroplating
solution to use at home. I have looked online for days and really
havn't come across anything. I know most prfessionals spend a lot of
time fine tuning their process, but I am just looking for something
basic. Any help would be appretiated. Thanks, Lucas.
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