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The Vacu-Storr™ high vacuum storage containers (desiccators) were developed to store materials which are sensitive to dust, moisture, oxygen and other gases found in the environment. Each Vacu-Storr™ container is tested to a vacuum level of 10-6 mbar. These desiccators feature soda-lime glass containers, a machined nickel-plated aluminum cap, fluoropolymer vacuum seal, and metal valves with PTFE shaft seals. They are capable of holding a vacuum for up to 5 years. The vacuum connection for is a 1/4" (6.35mm) barb fitting. The glass chamber is shielded with protective plastic mesh for implosion protection. Lid and mesh color may vary from those shown. Available in four sizes: small, medium, large and x-large.
The DRI-BOX® is a small perforated plastic box containing indicating silica gel. The box is sealed on the side to prevent silica gel from spilling. The DRI-BOX® is convenient for use in smaller type desiccators of 3 cubic feet or less, packages, and for transportation. The desiccant has a reversible action. Once it has adsorbed all the moisture it can hold, indicated by a color change from blue to pink, it can be regenerated easily by microwave (15-20 seconds) or conventional oven (3 hours @ 240°F/115°C). Once it is regenerated it turns back to blue.
SDS (129KB PDF) PELCO® Technical Notes - Facts and Information about Indicating Desiccant (282KB PDF)
DRI-BOX®size is 55 x 55 x 25mm, total weight is 67g, dessicant weight is 46g.