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Everything but the Kitchen Zinc

Discussion in 'Electronic Components' started by Watson A.Name - Watt Sun, Sep 23, 2003.

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  1. I saw this http://home.t-online.de/home/gollum/salt.htm and I said,
    why bother with a half volt when I could make one with a volt or two.
    I could build a crow's foot battery like back in old the days of
    telegraphy.

    I got some root killer for the stump I'm still trying to kill; it's
    mostly copper sulfate blue crystals. I have some copper plate around
    somewhere, or I could use a piece of PC board. But where do I get
    some zinc? To make a crows foot? I remember that my dad's drinking
    buddy used a zinc sacrificial anode on his sailboat to keep the rest
    of the boat from corroding.

    This battery sounds so cool.
    http://www.chss.montclair.edu/~pererat/mbatt.htm

    Some of the cells sound like they would be toxic waste when used up.
    http://www.faradic.net/~gsraven/morse_misc/tg_batteries.html


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    Don't be ripped off by the big book dealers. Go to the URL
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    http://www.everybookstore.com You'll be glad you did!
    Just when you thought you had all this figured out, the gov't
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  2. Baphomet

    Baphomet Guest

    To make a crows foot? I remember that my dad's drinking
     
  3. You should be able to buy it from a building supply company like
    Lowes or home depot. THey sell Zinc to put on the ridge cap to kill
    fungus that destroys asphalt shingles.
     
  4. John Larkin

    John Larkin Guest


    Residential water heaters have sacrificial anodes... probably zinc. I
    think they screw in through a tapped hole on top.

    Oh: here is one

    http://www.plumbingstore.com/anoderods.html

    They show their rods as being aluminum or alum/zinc/tin.

    John
     
  5. Dan Barlow

    Dan Barlow Guest

    Yep, went by the local marine supply place in Alexandria VA and they
    have hundreds of pounds of zinc anodes in lots of different styles.
    Not too expensive either.
    -Dan Barlow
     
  6. Thanks for the info. I guess I shoulda kinda said where do I get zinc
    locally? There are welding supply shops locally, I wonder if they
    have zinc in bars or strips. Or could I use a cheap pewter toy or
    casting for a zinc source?

    Sometimes I wonder why I come up with such silly ideas. On my way
    home I stopped off at the Big Orange Box hardware store and bought a
    few things, and I saw an 8-pack of AAA cells, with 2 extra cells, for
    under five bucks. So I bought the pack of ten for less than 50 cents
    a battery. And here I'm trying to build something that will give me
    less voltage and power, yet cost me lots more time and money. Duh.

    Maybe it's the survivalist in me. The need to know how to create a
    battery from scratch, just in case the situation gets as bad as it did
    on the east coast before hurricane Isabel, where all the batteries had
    been bought up for the emergency and people were left with nothing but
    their wits.


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    ###Got a Question about ELECTRONICS? Check HERE First:###
    http://users.pandora.be/educypedia/electronics/databank.htm
    My email address is whitelisted. *All* email sent to it
    goes directly to the trash unless you add NOSPAM in the
    Subject: line with other stuff. alondra101 <at> hotmail.com
    Don't be ripped off by the big book dealers. Go to the URL
    that will give you a choice and save you money(up to half).
    http://www.everybookstore.com You'll be glad you did!
    Just when you thought you had all this figured out, the gov't
    changed it: http://physics.nist.gov/cuu/Units/binary.html
    @@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@@[email protected]@[email protected]@@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@@
     
  7. Thanks, and I was there this afternoon and didn't think to go to that
    dept and check. Maybe I'll stop by again in the next few days.

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    ###Got a Question about ELECTRONICS? Check HERE First:###
    http://users.pandora.be/educypedia/electronics/databank.htm
    My email address is whitelisted. *All* email sent to it
    goes directly to the trash unless you add NOSPAM in the
    Subject: line with other stuff. alondra101 <at> hotmail.com
    Don't be ripped off by the big book dealers. Go to the URL
    that will give you a choice and save you money(up to half).
    http://www.everybookstore.com You'll be glad you did!
    Just when you thought you had all this figured out, the gov't
    changed it: http://physics.nist.gov/cuu/Units/binary.html
    @@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@@[email protected]@[email protected]@@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@@
     
  8. Tim Williams

    Tim Williams Guest

    (Psst..... pennies... 1983 and newer....)

    Tim
     
  9. I found some good info there that I didn't know. Thanks.

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    ###Got a Question about ELECTRONICS? Check HERE First:###
    http://users.pandora.be/educypedia/electronics/databank.htm
    My email address is whitelisted. *All* email sent to it
    goes directly to the trash unless you add NOSPAM in the
    Subject: line with other stuff. alondra101 <at> hotmail.com
    Don't be ripped off by the big book dealers. Go to the URL
    that will give you a choice and save you money(up to half).
    http://www.everybookstore.com You'll be glad you did!
    Just when you thought you had all this figured out, the gov't
    changed it: http://physics.nist.gov/cuu/Units/binary.html
    @@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@@[email protected]@[email protected]@@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@@
     
  10. But how do you go about separating the zinc inside from the copper
    cladding? This brings to mind an episode that occurred to some
    friends and myself a long time ago.

    The guy I worked for got a bottle of Eastman 910 adhesive known today
    as CA, cyanoacrylate or crazy glue or super glue. This was back when
    it first came out in the mid '60s, and no one knew what it could do.

    So the other guy in the shop says hold your finger out, and he puts a
    small drop of it on my finger and tells me to squeeze my finger and
    thumb together and count to ten. I did that, and Oh, Sh!t! I
    couldn't get my fingers apart!

    After dealing with that, by using a knife and losing part of my
    fingerprint, we decided to win some coin-tossing bets. We superglued
    some quarters, tails facing out, onto a piece of metal and chucked
    them in a lathe and turned them down to half thicknes. We heated up
    the metal with a propane torch to melt the glue and let the half
    quarters loose. Then we superglued two quarter halves together and
    clamped them in a vise. A few hours later we had a quarter that would
    allow us to flip a coin and never lose!

    When we turned down the coins, we found that some were really crappy
    inside, like they had not been sintered together properly and the
    metal was coming apart in small pieces. So the U.S. Mint's QC wasn't
    all that great. Maybe that's still normal, maybe minting a coin out
    of a sandwich of metals doesn't need to be done well, just around the
    edges. I've never seen a coin come apart under normal circumstances.


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    ###Got a Question about ELECTRONICS? Check HERE First:###
    http://users.pandora.be/educypedia/electronics/databank.htm
    My email address is whitelisted. *All* email sent to it
    goes directly to the trash unless you add NOSPAM in the
    Subject: line with other stuff. alondra101 <at> hotmail.com
    Don't be ripped off by the big book dealers. Go to the URL
    that will give you a choice and save you money(up to half).
    http://www.everybookstore.com You'll be glad you did!
    Just when you thought you had all this figured out, the gov't
    changed it: http://physics.nist.gov/cuu/Units/binary.html
    @@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@@[email protected]@[email protected]@@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@@
     
  11. Greg Pierce

    Greg Pierce Guest

    Galvanized sreel will work as well - the galvanizing is zinc.
     
  12. Two problems. The coating is thin, so it may last only a short time.
    And how to deal with the edges, where the steel is exposed and would
    corrode.
    Thanks.

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    ###Got a Question about ELECTRONICS? Check HERE First:###
    http://users.pandora.be/educypedia/electronics/databank.htm
    My email address is whitelisted. *All* email sent to it
    goes directly to the trash unless you add NOSPAM in the
    Subject: line with other stuff. alondra101 <at> hotmail.com
    Don't be ripped off by the big book dealers. Go to the URL
    that will give you a choice and save you money(up to half).
    http://www.everybookstore.com You'll be glad you did!
    Just when you thought you had all this figured out, the gov't
    changed it: http://physics.nist.gov/cuu/Units/binary.html
    @@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@@[email protected]@[email protected]@@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@@
     
  13. default

    default Guest

    (snips)

    Been awhile since I did it, but I seem to remember nitric acid does a
    pretty fair number on the copper while leaving the zinc behind. And
    hydrochloric for the zinc leaving the copper behind (after filing away
    the edges, so the acid can react with the zinc).

    Anyhow search on the net using <"copper clad" "nitric acid" penny>

    Probably just as easy to find zinc bars on line.

    Then you'd have to melt them down and cast them. That takes 419
    Degrees C. Charcoal and a blower with a crucible made from galvanized
    pipe would work.

    I used the iron pipe nipple / end cap crucible to melt aluminum at
    ~700 degrees successfully. The trick is to keep the hot gases (carbon
    monoxide, and carbon dioxide) around the crucible so the metal doesn't
    catch fire or oxidize. For molds I used dry hardened clay. I made
    some fishing lures.

    1083 C to melt copper. 1500 for iron - so the pipe crucible might
    still work.

    Interesting project.
     
  14. default

    default Guest

    Another source, from a building/appliance outlet, are the zincs they
    make for water heaters. Hard to find because people would rather
    change the heater than replace the zincs. (not many people know there
    are zincs in water heaters)
     
  15. John Larkin

    John Larkin Guest

    Yeah, I guess I should replace the rods in my water heater every
    couple of years. The heater is in a closet in the basement and is a
    real pain to replace, not to mention the cold showers for a couple of
    days. I think hot water is the basis of civilization.

    John
     
  16. Tim Williams

    Tim Williams Guest

    Meh. Fold some sheet metal into a shape that can hold something without
    leaking, then melt on the stove. It's not really hot enough to need much
    for insulation.

    For a mold, a metal plate would work well. If you really want to get into
    it, a sand mold of a nice flat plate would allow very consistent results.

    Tim
     
  17. Greg Pierce

    Greg Pierce Guest

    Eh, minor details ;-)
     
  18. default

    default Guest

    The fact that an aluminum pot will melt on a stove supports your
    assertion. I had no luck melting aluminum in a cast iron pot (on the
    stove) and had no luck melting aluminum in an iron crucible inside a
    1200 watt radiant heating element. The charcoal was a whole differnt
    experience. I never tried it stove-top.

    Have you done it? What did you use? and how did it work?

    Any problems with oxidation?
     
  19. BFoelsch

    BFoelsch Guest

    Don't know if you are in a likely area or not, but if you are in a major
    metropolitan area you may be able to get zinc from a pipe organ
    builder/repair firm. Many of the large pipes are made of zinc with a lacquer
    finish. Smaller pipes are various tin alloys, but most such places should
    have some old zinc sheet or old zinc pipes laying around.
     
  20. Guest

    Whatever you call the thing that makes you come up with what
    you call "silly" ideas - that's the very thing that drives the
    advancement of science.
     
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