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Thread: Diafine - Shelf Life of Stock Solution

  1. #1

    Join Date
    Feb 2007
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    Flagstaff, AZ
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    Diafine - Shelf Life of Stock Solution

    Hi all,

    I've got a batch of Diafine that I mixed as a stock solution about 4-5 months ago. It's been stored at room temp in standard brown bottles, mostly in the dark.

    I'm ready to use Diafine again and was curious if anyone knows how long a stock solution is good for? The box says it is "unusually stable and has a long shelf life".

    I don't know what that means, though.

    I have almost 3 liters each of A & B should I give it a go or should I just mix a new batch?

    Wisdom???

    Thanks,
    Jim
    Jim Cole
    Flagstaff, AZ

  2. #2

    Join Date
    Jan 2001
    Posts
    4,590

    Re: Diafine - Shelf Life of Stock Solution

    At least a year. Probably two.
    Wilhelm (Sarasota)

  3. #3

    Join Date
    Feb 2007
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    Flagstaff, AZ
    Posts
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    Re: Diafine - Shelf Life of Stock Solution

    Thanks, Bill. That's what I wanted to hear.

    Gonna try and shoot some Efke positive paper for the 1st time tomorrow and wanted to use the Diafine as the developer. Should be fun.
    Jim Cole
    Flagstaff, AZ

  4. #4
    Dave Karp
    Join Date
    Dec 2001
    Location
    Los Angeles, CA
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    2,954

    Re: Diafine - Shelf Life of Stock Solution

    In my experience, it lasts longer than you feel comfortable using it. I used to dump it even though it was working, because I could not accept that it could possibly keep going!

  5. #5

    Join Date
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    Flagstaff, AZ
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    Re: Diafine - Shelf Life of Stock Solution

    Thanks, David. I know how you feel.
    Jim Cole
    Flagstaff, AZ

  6. #6

    Join Date
    Jan 2001
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    4,590

    Re: Diafine - Shelf Life of Stock Solution

    Quote Originally Posted by Jim Cole View Post
    Thanks, David. I know how you feel.
    Oh boy, me too! Also Rodinal and Ansco 30.
    Wilhelm (Sarasota)

  7. #7

    Re: Diafine - Shelf Life of Stock Solution

    Quote Originally Posted by David Karp View Post
    In my experience, it lasts longer than you feel comfortable using it. I used to dump it even though it was working, because I could not accept that it could possibly keep going!
    Ditto.

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