Old D76 - Mixed and kept in fridge

[irvine.short]

<p>Hi All,</p>

<p>If mixed D76 stock solution has been in a full bottle in a fridge and has not changed colour, will it still be OK?</p>

<p>--Irvine</p>

 

[john_shriver]

<p>Test a few drops on some exposed film. Does it turn it black? Fridge doesn't preserve it nearly as well as eliminating oxygen from the bottle.</p>

[greg_miller10]

<p>As John suggest, keeping the film in some kind of bladder where you can squeeze out the excess air is a good idea. I do find that refrigerating developer also makes a big difference to how long it will last. Color is an OK indicator of whether it is still effective or not but some kind of test on something like a control strip or some pre-exposed unimportant film would be the safe approach...if not to just toss it out.</p>

<p>If you want a developer you can keep a long time and is also my favorite B&W film developer for modern film, you might want to try x-tol.</p>

[craig_shearman1]

<p>Putting develop in the fridge is a bad idea. It helps the dissolved particials precipitate out. Look carefully for any white particles, dust, etc., at the bottom of the container and any cloudiness. Best move is to throw it out -- and don't put developer in the refrigerator again.</p>

[bgelfand]

<p>D-76 is relatively inexpensive. The images on your film are irreplaceable, not to mention the cost of a roll of film.</p>

<p>When in doubt, dump the chemicals and start with fresh, known good products.</p>

[ian_gordon_bilson]

<p>If you have a piece of exposed film leader available, put it in some of the developer you wish to try.<br>

If it does not turn black within 5-10 minutes,it probably won't develop your film either.</p>