From the Bob Smith site:

What is the best way to store CA glue? Should I keep open bottles in my freezer?
– R. Pierce, Anderson, IN
A:
Exposure to heat and moisture are the two main factors in decreasing the shelf life of CA. If kept at normal room temperature (74°F) and humidity levels, BSI’s regular CAs will have a shelf life of over two years. Unopened bottles can be stored in a freezer, but this offers little or no advantage over storage in a refrigerator. CA bottles can be stored in a sealed container inside the refrigerator to isolate them from moisture. Adding a desiccant (silica gel) to the container can extend the life of the CA to over four years. Opened bottles that are frequently used should not be put into into the fridge since condensation can occur inside the bottle. Accelerator should never be stored with CA.