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  1. #1
    Josh Harmon's Avatar
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    C-41 Chemical question

    Hello.

    I currently am using a Unicolor c41 kit and have a few questions.

    1. What is the best method of disposal?

    2. What is the best way to dispose of the blix that has been in a solution of tin foil (silver depleted)?

    This is mostly for curiosity sake, my buddy is in a chemistry class and is curious about these processes too.

    Thanks!

    Josh
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    Canon EOS Elan II/E, Elan 7, and 630. -- Bronica ETRS -- Pentax 6x7
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  2. #2
    Photo Engineer's Avatar
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    Depleted blix with silver removed is about like Miracid. It is actually a strong version of fertilizer for plants that want iron. So, you could in theory, dump it on a bed of azaleas or rhododendrons. I don't advise it, but it can go down most drains if you dilute it. The silver residue is another matter.

    If you mix silver depleted blix and color developer, they tend to neutralize each other and dump better. That is to say that the chemicals tend to cancel each other out in pH and BOD and COD.

    PE



 

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