wdenies
wdenies
During a generous cleanup of my darkroom I found a can of D76 powder (>10 years). This can was never opend and is still sealed.
Should I dare to use it?
Wim
Should I dare to use it?
Wim
sf
Veteran
shoot a quick roll and see.
xayraa33
rangefinder user and fancier
if you find that the D 76 powder is white and loose when you open the can, then it is still good .
ZorkiKat
ЗоркийК&
If the container is still intact with no signs of serious rusting or corrosion, or any perforation, the contents should still be good. Open the tin, and if what you see is exactly what good D76 powder should look like (loose, creamy white not brown), it should still be good. Though its not D76, I've used Microdol-X from what must have been a 20 year old can and it was still good.
wdenies
wdenies
Thks, I will give it a try
Wim
Wim
wdenies
wdenies
Still looks good!
From one question comes another!
It is a 5l can.
Is it save to divide the powder into smaller portions (for 1l)?
I am affraid when making 5l at once, oxydation will start to play.
Wim
From one question comes another!
It is a 5l can.
Is it save to divide the powder into smaller portions (for 1l)?
I am affraid when making 5l at once, oxydation will start to play.
Wim
Ronald M
Veteran
Kodak recommends against dividing packages. Product may not be consistent within the package.
In sealed bottles, it will be good for 6 mo to a year.
If you know you will not use it all, keep two gals and toss out three right away.
In sealed bottles, it will be good for 6 mo to a year.
If you know you will not use it all, keep two gals and toss out three right away.
ZorkiKat
ЗоркийК&
wdenies said:
Though Kodak recommended against it, it's possible to do it. Kodak admonished against subdividing powdered chemistry because the dry components usually sift and the mixture becomes unevenly mixed during the tin's (or paper pack's) transit or storage. However, you can mix the powder with a spatula before subdivision
to distribute the components evenly. Stir into the powder for 10 minutes to mix the lot. If you think about it, the powder in the packs weren't mixed individually by weight. The stuff which was sealed into the tin came from a larger batch of premixed powder where the components have been added together in larger amounts.
If you want to subdivide the contents of a 5 litre tin into smaller 1 litre units, simply divide the total weight of the dry powder by 5. Put each unit in a small plastic bag, then fold it up so that little air is packed with the powder and seal the end with a rubber band. You can seal this with a plastic bag sealer too. This really works.
A simpler way would be to mix the whole 5 litre solution and distribute the amount in smaller 5 litre bottles. Filled to the top and sealed, the developer solution should at least last for a year.
Jay
R
RML
Guest
Just don't inhale the dust when you stir the powder. It's carcinogenic. No matter how small the chance, I'm not gonna risk my life that way. OK, I'm off roller skating blind folded in rush hour! 