This is a 55 lbs. bag of blue indicating silica gel. The silica gel desiccant is made of silicon dioxide and formed into hard beads. The beads are impregnated with a moisture indicating material with a deep blue color that turns pink when saturated.
Silica gel has a vast network of interconnecting pores with diameters of 20-30Å. These pores have a strong affinity for moisture and use physical adsorption and capillary condensation to trap and hold it. Silica gel will remove moisture at temperatures as high as 220°F, but is best used at room temperature (70-90°F) and high relative humidity (60-90%).
Blue silica gel contains cobalt chloride and should not be used in food, beverage, or pharmaceutical applications. Avoid inhalation and ingestion. See the safety data sheet for proper handling.
Typical applications
- Compressed Air Dryers
- Humidity Control
- Gas Processing
- Tank Breathers
- Protection of Non-Consumable Packaged Goods
