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  1. #1

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    frozen acetic acid!

    did i ruin it you think?

    i am having trouble with my collodion developer.......it uses acetic acid! frozen AA is going to make my test difficult ......

    shit!
    photoshop is somewhere you go to buy photo equipment.


    lens photos here

  2. #2

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    it is called "glacial" because its freezing point (16.7 C 62F) is only slightly below room temperature.

    damn! now i know!
    photoshop is somewhere you go to buy photo equipment.


    lens photos here

  3. #3
    smieglitz's Avatar
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    Eddie,

    That's why they call it "glacial acetic acid." It freezes at 62 degrees Fahrenheit IIRC. I'm not sure if it harms the acid to freeze/thaw it, but be careful about bursting the container and creating a spill. The fumes are really nasty and it is corrosive in its concentrated form.

    Joe
    Last edited by smieglitz; 01-06-2009 at 12:43 PM. Click to view previous post history. Reason: too slow

  4. #4
    smieglitz's Avatar
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    Edit: Is there an echo in here? Sorry for the dupe info. I received a phone call that slowed me down just as I was typing a response.

  5. #5
    Ty G
    Just thaw it and it is good to go. You can also keep some ready-to-go diluted with distilled H2O and that will solve the frozen problem. Or as I do at reenactments, stick the frozen bottle in your pocket and in a few minutes it is ready.

  6. #6

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    Eddie, I've had it freeze and thaw several times with no ill effect to its properties.

    Just bring it to room temperature and it will soon thaw out. If you are in a bit of a hurry, loosen the top of the bottle and stand it in a tepid water bath.

  7. #7
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    Make sure the entire bottle of Glacial Acetic Acid is thawed. The same is true of any diluted Acetic Acid. If it is not all thawed you may get a tiny bit or a large bit of non-uniformity depending on dilution. It is not harmed by freezing.

    However, at higher dilutions be careful in case the bottle cracks from expansion of the water content as it freezes. In that case, you will have a potentially dangerous leak.

    PE

  8. #8
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    Just want to mention, if you dilute add the acid to water not the other way around.
    D-76 is a standard developer, although not one I use.
    Ansel Adams - The Negative

  9. #9
    Ole
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    I used to keep a small bottle of glacial acetic acid on a shelf in my darkroom: If it was solid, it was too cold to work there.
    -- Ole Tjugen, Luddite Elitist
    Norway

  10. #10
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    My TEA is frozen solid, but my Glacial Acetic Acid is liquid.

    PE

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