Apple Cider Vinegar and Aluminium. Why it doesn't mix?

Discussion in 'Feeding & Watering Your Flock' started by aoxa, Dec 5, 2012.

  1. aoxa

    aoxa Overrun With Chickens

    I've heard it time and time again. No metal or Aluminium containers if using ACV in the water. IT leaches toxins.

    How much would it leach? How would it be dangerous to your birds?

    I've also heard it leaches plastic too, but not nearly as often.
     
  2. sumi

    sumi Égalité Staff Member

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    I've looked for an answer to this myself. I've looked at quite a few sites and the answers I got were:

    -it corrodes the metal
    -reacts to the metal
    -makes the vinegar go off
    -poisons the chickens.

    [​IMG]

    One or two sites did say it can be used safely in stainless steel containers though...

    O.K. found a bit more info: Vinegar is mostly acetic acid, which, when in contact with "soft" metal for long periods form hydrogen gas and acetates.
     
    Last edited: Dec 5, 2012
  3. ChickensRDinos

    ChickensRDinos Chillin' With My Peeps

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    The acetic acid in all vinegars is corrosive to metals like magnisium, iron and zinc. The aluminium is not actually the problem. Aluminium is generally used to contain strong acetic acids because aluminmun will passivate and form a acid resitant film and not corrod. SO, a pure aluminium feeder would actually be fine.

    But, most chicken feeders are made of GALVANIZED aluminium which means they are coated with a layer of zinc which is corrosive when exposed to vinegar. So the vinegar will eat away at the metal and the chemical reaction will cause hydrogen gas. Bad news.

    The galvanization prevents rusting and some steel is also galvanized so if people are saying is ok it is likely regular steel and not galvanized steel as the would have the same reaction with the zinc. I am not certain about the chemical make up of stainless.

    edited: I was curious so I looked it up and it looks like you can passivate stainless steel.
     
    Last edited: Dec 5, 2012
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  4. sumi

    sumi Égalité Staff Member

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  5. Sally Sunshine

    Sally Sunshine Cattywampus Angel <straightens Halo> Premium Member

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  6. aoxa

    aoxa Overrun With Chickens

    :thumbsup

    I am looking at making a trough out of an aluminium gutter.

    Kind of like Beekissed's feeder, but bigger.
     
    Last edited: Dec 5, 2012
  7. aoxa

    aoxa Overrun With Chickens

    Thanks for the details Sumi!
     
  8. ChickensRDinos

    ChickensRDinos Chillin' With My Peeps

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  9. aoxa

    aoxa Overrun With Chickens

    This part is the most helpful:
     
  10. sumi

    sumi Égalité Staff Member

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    You're welcome. I didn't copy the actual text as I believe it is it's copyrighted.
     

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