Correct way to store Potassium Ferricynidegreenspun.com : LUSENET : B&W Photo - Film & Processing : One Thread
I just got 2 pounds of this stuff and I'm getting into the world of bleaching. (thanks to Tim Rudman's book) What is the best way to storage ferri, in dry form? I assume that keeping it in an airtight container is best. Do I need to keep it from the light?
-- Chuck Kleesattel (email@example.com), October 27, 2000
A sealed glass container is best. Mine has been on the shelf for over 20 years with no degradation! Light doesn't bother it. Two pounds should be a several lifetime supply for you plus 3 or 4 friends.
-- Conrad Hoffman (firstname.lastname@example.org), October 27, 2000.
Get the MSDS (material safety data sheet) for this stuff. Heed the warnings. Keep it out of the reach of children! It is toxic.
-- Andrew C. Eads (email@example.com), December 19, 2000.
I would prefer if it was kept in a polyethylene container. Glass in a darkroom can be dangerous. It is easily broken and plastic isn't. Our lab here and many other labs are storing smaller amounts of chemistry and what materials are stored are kept in plastic for safety's sake. James
-- james (firstname.lastname@example.org), December 19, 2000.
There are also safety glass containers. These are glass containers with a plastic coating. When dropped, the glass breaks, but the plastic contains the glass fragments and the contents.
-- Terry Carraway (TCarraway@compuserve.com), December 20, 2000.