Silica Gel Desiccants

• Product Overview: Although silica is referred to as a "gel", it is in fact entirely solid. Its microporous structure and high surface area are ideal for the removal of moisture from the atmosphere.
  As the silica granules adsorb moisture, their physical appearance does not change in any way. Indeed, silica gel is dry to the touch even when fully saturated with water. Since the dehydration process is physical (i.e. not chemical), no by-products are released as the water molecules become trapped inside the pores of the silica gel. Once fully saturated, the product can be regenerated by heating at 100 - 120 °C.
  Orange silica gel contains an indicating dye that changes colour (from orange to green) as moisture is adsorbed. In contrast, white silica gel does not contain an indicating dye; it is therefore used in applications where the user cannot see a colour change (e.g. in sachets).
• Mean Surface Area: 700 – 800 m2/g