D76 and Fixer mixing question.

<p>Hi, I was wondering if anyone could give me instructions on how to make 591mL of fixer and d-76 developer? I bought the powder and it only gives me instructions on how to make a gallon. I'm aware of losing shelf life on the powders and I have no problem with it. I don't have anywhere to store it and i want to try doing this at home before I invest in things to hold full batches. Thanks!</p>

<p>You should not mix partial quantities of any powdered chemistry, unless the powder consists of only a single ingredient.</p>

<p>The reason is that you can't guarantee that the various chemicals will be in the correct proportion in the sample.</p>

<p>One option would be to make one quart, then dilute it one part to three parts water for use.<br /> Of course this assumes that the full bag will disolve in that small a volume.</p>

<p>If this will be a perpetual problem, consider using a liquid concentrate like HC-110 or Rodinal.<br>

Both have a reputation for very long life of the concentrate even in partially-used bottles.</p>

<p>- Leigh</p>

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<p>You mix the whole packages, store it in two liter soda bottles that you washed out really well. There are multiple chemicals in each package and they are NOT evenly mixed. If you use some of the powder, you'll never know if it is working properly. Squeeze the air out to extend the life. Use generic bottles that have removeable lablels and write on them with permanent markers in LARGE letters.</p>

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<p>#stock solution will keep for 6months generally. if you are not going to use 1 gallon in 6 months, then you need a smaller packet size (eg 1 litre)</p>

<p>Mix the entire package, divide the mixed developer into smaller GLASS storage bottles and fill them to the top, I lay a piece of plastic wrap over the mouth of the bottle before screwing down the lid. If you want to divide your developer use HC-110 or TMax liquid developers and Kodafix or Kodak Rapid Fixer, note that if you plan to one-shot your fixer you can dilute it to the more economical "paper strength" and I will often save the fixer in a tray and use it later the same day to fix proof sheets.</p>