Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 70,695   Posts: 1,549,060   Online: 1032
      
Results 1 to 8 of 8
  1. #1

    Join Date
    Nov 2004
    Location
    Sydney, Australia
    Shooter
    Medium Format
    Posts
    87
    Images
    16

    Freezing X-TOL stock

    I only occasionally use X-TOL. Mixing up 5L results in discarding around half the stock due to age. Has anyone decanted stock X-TOL into smaller brown glass bottles and frozen the liquid?

    Thanks, Lyn Arnold

  2. #2
    david b's Avatar
    Join Date
    Oct 2003
    Location
    None of your business
    Shooter
    Medium Format
    Posts
    4,034
    Images
    30
    Never froze it. probably would not.

    I just left it in 1 liter bottles filled to the top.

    Never had a problem even a few months later.

  3. #3

    Join Date
    May 2005
    Location
    Woonsocket, RI USA
    Shooter
    35mm
    Posts
    2,725
    I can't comment on freezing. Kodak officially says that XTOL lasts up to 6 months in sealed bottles, and most people report the practical limit is likely to be greater than this (probably a year or more), but XTOL doesn't change color when it goes bad, so keeping it for a long time can be risky.

    If you like XTOL but you can't use 5 liters of it in 6-12 months, you might consider using a mix-it-yourself XTOL-like developer, such as Mytol. You can then mix it in whatever quantity you like -- even fresh from raw chemicals for a single roll. (You might need to prepare a stock solution of phenidone in propylene glycol to make it practical to measure the small quantities of phenidone you'd need for this, though.) Of course, the mix-it-yourself approach will require you to buy some raw ingredients (Mytol requires five, plus water) and a scale. If you buy a few more ingredients you'll be able to experiment with other mix-it-yourself developers, though.

  4. #4
    Alex Bishop-Thorpe's Avatar
    Join Date
    Jul 2006
    Location
    Adelaide, South Australia
    Shooter
    Multi Format
    Posts
    1,455
    Images
    29
    From what I've heard, freezing any developer isn't a particularly good idea. I'd suggest putting it in five individual 1 litre bottles, it'll last a lot better that way. I always seem to end up with the last litre or so being a bit suspect, so I should probably follow my own advice here too.
    The Analogue Laboratory, or 'so you built a darkroom in an old factory in the industrial zone'.
    Blog thing!.

    Worry less. Photograph more.

  5. #5
    Snapshot's Avatar
    Join Date
    Jan 2007
    Location
    Toronto, Ontario, Canada
    Shooter
    Multi Format
    Posts
    913
    Freezing stock solutions is not recommended, developers and fixers alike. Chemicals may precipitate out, even if only refrigerated. I have had my XTOL last 9 months before I used up the entire stock. Make sure you squeeze out any air if possible and it will last longer. As an added tip for obsessive types, use distilled water for making the stock solution and boil it to get out as much as the air dissolved in the water. Most oxidation of developers is the result of dissolved oxygen.
    "The secret to life is to keep your mind full and your bowels empty. Unfortunately, the converse is true for most people."

  6. #6

    Join Date
    Mar 2004
    Location
    Southern California
    Shooter
    Multi Format
    Posts
    3,879
    Images
    11
    Quote Originally Posted by Lyn Arnold View Post
    I only occasionally use X-TOL. Mixing up 5L results in discarding around half the stock due to age. Has anyone decanted stock X-TOL into smaller brown glass bottles and frozen the liquid?

    Thanks, Lyn Arnold
    Try Instant Mytol - no freezing or special storage needed.

    http://www.apug.org/forums/forum223/...ant-mytol.html
    Tom Hoskinson
    ______________________________

    Everything is analog - even digital :D

  7. #7

    Join Date
    Nov 2004
    Location
    Sydney, Australia
    Shooter
    Medium Format
    Posts
    87
    Images
    16
    Once again, thanks to all for responding and sharing your knowledge and experience. I'll go with the Mytol formula.

    Lyn

  8. #8

    Join Date
    Nov 2002
    Location
    Melbourne, Australia
    Shooter
    Medium Format
    Posts
    987
    You can mix a 5L pack of Xtol in 2.5L. If put into small bottles with very little air space it will last longer. Then just dilute it to the required strength.



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin