chemistry question....

BigSteveG

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is it advisable to store chemistry in the refrigerator? if so, how long does it extend the chemistry's useful shelf life?
 
I wouldn't put any photo chemistry in the same 'frige I use for food.
That is just a really bad idea.
I also think the humidity wouldn't be very good for powdered chemicals.
Hvae no idea if the cold would help or hurt longevity of liquid chemicals.
Rob
 
Most chemical reactions are slowed down by cooling it so I would assume that applies to oxidizing/ageing as well.

But do keep the chemicals in a separate fridge, preferably with a lock on (especially if there are kids around).
 
Yep - works for most chemicals/solutions: store them in the fridge! Depending on how stable, or unstable, a chemical is, its life can be extended by years, sometimes.

One thing to watch out for: freezing or solid material appearing - either of which may occur above 0 C (32 F), depending on the chemical (those used for developing photos should be fine though). Store a small sample for a few days to check this, raising the fridge temp. if necessary.

(A chemist)
 
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