Rodinal Working Solution Shelf Life?

MrBuhl · 08-21-2005

Hey RFF's

I have some Rodinal working solution that I mixed up a few months ago (definitely less than 4 months) - probably two or three - anyone have any good feedback on what the shelf life of the working solution is? 25+1?

Have some film I wanted to develop and I hate to throw out the bottle to mix more - I just forgot I had mixed it up. Any thoughts or experience are appreciated!

Best,
Ed

08-21-2005

Not a clue, but I don't see why anyone would want to dilute Rodinal until just before its use. Undiluted Rodinal has a phenomenal shelf life.

Steve

FrankS · 08-21-2005

I don't have any first hand experience with that but I KNOW that I read it here that working strenth Rodinal has a VERY short shelf life. Dump it! You only need a few cc's to make new working strength developer, right?

MrBuhl · 08-21-2005

That's why I love it here - of course one knows what the right thing to do is ...

but that cheapo in the back of the mind starts to argue with the common sense - anyway ... at what price savings would I risk some good (hopefuly) negatives - almost nothing ... FrankS is right, a few cc's - thanks! I will dump it!

Thanks again,
Ed

titrisol · 08-22-2005

A coupl eof hours only....
I tried using once that had been sitting overnight and luckily for me I dumped a leader in there first....
it was very weak, so I started over.

phototone · 08-22-2005

Rodinal should be used IMMEDIATELY upon dilution to working strength. It has zero shelf-life in working strength dilution. Don't even wait until your coffee is ready. Develop NOW.

MrBuhl · 08-22-2005

Already dumped and developed the negs - thanks to everyone for the advice and input! (I got on an XTOL kick for a while and forgot about the Rodinal - sure is nice to have premixed working solution with the XTOL makes you realize how easy it is...)